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Patriot Exhaust GM Specific Fit Headers 1969-1987 2WD 1/2, 3/4, 1 Ton Pickup, Blazer/Jimmy, Yukon, Tahoe

737-H8048


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Patriot Exhaust H8048
$247.99
GM Specific Fit Headers
  • 1969-1987 2WD 1/2, 3/4, 1 Ton Pickup, Blazer/Jimmy, Yukon, Tahoe
  • 265-400 Small Block
  • 1-5/8'' Primary Tubes
  • 3'' Collector
  • Oval Port Shape
  • Raw Finish
  • Free Shipping - Ships directly from the manufacturer on 01/21/20
    Save $10 off $150+, $20 off $250+, $40 off $500+, $100 off $1,200+ Orders. Promo Code: 2020SAVINGS exclusions apply
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    Does Patriot Exhaust H8048 fit your vehicle?

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    1980  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HEAVY HALF
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987  GMC R2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980  GMC C2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987  GMC R2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.2
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: C
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1982  GMC C2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.2
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: J
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1974  GMC G35/G3500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: VANDURA
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979  GMC C3500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1982  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.2
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: C
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1974  GMC C15/C1500 SUBURBAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  GMC C25/C2500 SUBURBAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: V
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980-1981  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: G
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1979-1981  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: Z
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979  GMC C2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1987  GMC R3500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  GMC C15/C1500 SUBURBAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  GMC K35/K3500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: V
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980  GMC C3500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1982  GMC C2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1981-1982  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: F
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1981-1984  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1979  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1977-1978  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980-1981  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: G
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1974  GMC C25/C2500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987  GMC R2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.2
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: J
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1981-1982  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: F
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1974  GMC G25/G2500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: RALLY
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1974  GMC K35/K3500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1974  GMC C35/C3500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  GMC K15/K1500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: Y
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987  GMC R2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1981  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: Z
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1986  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1979-1981  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1986  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1979-1986  GMC C3500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  GMC G35/G3500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: VANDURA
    • Engine Vin: V
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973-1974  GMC K25/K2500 SUBURBAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1973  GMC C15/C1500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: X
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1979  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1974  GMC C15/C1500 SUBURBAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1974  GMC C25/C2500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1979-1986  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  GMC G35/G3500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: VANDURA
    • Engine Vin: W
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980-1986  GMC C2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  GMC C25/C2500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1987  GMC R2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1979-1981  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: Z
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1982  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1979-1981  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  GMC K15/K1500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: V
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973-1974  GMC K35/K3500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1973-1974  GMC P35/P3500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1977-1978  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1974  GMC G35/G3500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: RALLY
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1974  GMC G25/G2500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: VANDURA
    • Engine Vin: V
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  GMC K25/K2500 SUBURBAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973  CHEVROLET BLAZER

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979  GMC C3500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973  GMC C25/C2500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: X
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1973  CHEVROLET BLAZER

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: X
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1987  GMC R2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979-1982  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  GMC C15/C1500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982-1986  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.2
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: C
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1974  GMC C25/C2500 SUBURBAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980  GMC C2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: G
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1981-1986  GMC C2500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1979  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA GRANDE
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1973-1974  GMC C15/C1500 SUBURBAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1973  GMC P25/P2500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: X
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1979-1980  GMC C3500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1986  GMC C3500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1982  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.2
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1974  GMC C25/C2500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987  GMC R3500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980-1981  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: SIERRA CLASSIC
    • Engine Vin: G
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1973  GMC G25/G2500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: VANDURA
    • Engine Vin: X
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1981-1982  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1987  GMC R3500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987  GMC R1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.6
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HIGH SIERRA
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979-1981  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973  GMC G25/G2500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: RALLY
    • Engine Vin: X
    • CUI: 307
    • EngineType: V8 ( 5 L / 307 )

    1974  GMC G35/G3500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: -
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973-1974  GMC C35/C3500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979-1980  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1974  GMC G25/G2500 VAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: VANDURA
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1974  GMC C35/C3500 PICKUP

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974  GMC C25/C2500 SUBURBAN

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5.7
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979  GMC JIMMY

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 5
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: STREET COUPE
    • Engine Vin: U
    • CUI: 305
    • EngineType: V8 ( 5 L / 305 )

    1973  CHEVROLET BLAZER

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Req. left side AC Brkt H7608; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1987  GMC R1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 6.2
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: BASE
    • Engine Vin: C
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1980  GMC C1500

    • Fitment_Note: Collector: 3"; Port: OVL; Primary: 1 5/8"; Fits D-Port cyl. heads Incl. ZZ4 crate eng.; Use left side AC Brkt H7608, short compressors use stock Brkt; Reducers available with O2 sensor fitting;Fits most angle plug heads; Surface: Raw Steel
    • Liter: 4.8
    • Aspiration: NATURALLY ASPIRATED
    • SubModel: HEAVY HALF
    • Engine Vin: T
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    Are these stainless?

    Asked by: C15s
    These are not stainless. They are unpainted steel.
    Answered by: Jon Jegs Tech
    Date published: 2017-11-09
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    • cp_1, bvpage1
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    • clientName_jegs

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    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.