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Flowtech 11500

Long Tube Headers

Flowtech 11500

387-11500

jegs shipping
FREE Shipping
Ships
$152.95
$137.66
ON SALE - $15.29 OFF
Flowtech 11500 Long Tube Headers $137.66
Long Tube Headers
  • Chevy 283-400
  • 1966-87 Chevy/GMC 1/2, 3/4 & 1-Ton 2WD/4WD
  • 1966-91 Blazer/Jimmy K5, Suburban 4WD
  • 1967-87 Chevy Blazer & GMC Jimmy 2WD
  • 1988-91 Chevy/GMC 1-Ton Crew Cab 2WD/4WD
  • 1.5'' Tube
  • 3'' Collector
  • Painted Black

  • Flowtech 11500 Details

    GM Truck/SUV

  • Painted Black

  • For emissions A.I.R. Injection Tubes use part number 387-11500S
  • Must modify stock exhaust to retain catalytic converters
  • Installation Requires A/C Bracket 387-10042
  • Applications with oxygen sensors use reducers 387-10110 for 3'' three bolt flange
  • Pre-1970 Models w/Exhaust Manifold Mounted Alt./Gen. Use Bracket 387-10031
  • May require clutch linkage modifications
  • On 1983-84 4WD, it is necessary to remove the rubber stopper below the starter
  • On 1988-91 1-Ton Crew Cab Pickup, only fits C30 chassis
  • Will not fit angle plug heads

  • Specifications:

    Manufacturer's Part Number:
    11500FLT

    Performance Plus Fuel Economy at a Price You Can Afford!

    These headers are made of 16-gauge tubing that's welded to O-ring port exhaust flanges on one end and mandrel-formed collectors on the other. You get a premium performance-minded design with a budget-minded attitude!




    Features
  • 16-gauge (.049" thick) cold-rolled mild steel (except stainless steel were noted)
  • Precision engineered for performance, fuel economy, and fit
  • Mandrel-formed plenum increases flow for more power
  • Leakproof O-ring port seals quality tested by FlowTech
  • Finished with black paint or ceramic coating, polished available for some applications

  • Does Flowtech 11500 fit your vehicle?

    Narrow Results

    1987 GMC R2500 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 GMC V1500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 GMC K1500 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: HIGH SIERRA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1979 CHEVROLET K10 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: SCOTTSDALE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1982-1986 GMC C1500 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1974 CHEVROLET K10 PICKUP

    • CC: 5736
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985-1986 GMC K3500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1984-1986 CHEVROLET C20 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1971 CHEVROLET BLAZER

    • CC: 5031
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1975-1978 GMC K25 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K10 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1969 CHEVROLET K10 PICKUP

    • CC: 5736
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1982 GMC C2500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973 CHEVROLET C10 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1975-1978 GMC C25/C2500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 GMC C15 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1978 GMC C25/C2500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979-1980 GMC K3500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: SIERRA GRANDE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1974 GMC K25/K2500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K10 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: X
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1974 CHEVROLET C30 PICKUP

    • CC: 5737
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1986 CHEVROLET BLAZER K5

    • CC: 5031
    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979-1980 GMC K2500 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1979 CHEVROLET K30 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: SILVERADO
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1978 GMC C15 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1978 GMC K25 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1978 CHEVROLET K5 BLAZER

    • CC: 5031
    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1966 CHEVROLET K20 PICKUP

    • CC: 4638
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1974 GMC C25/C2500 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1978 GMC K25 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1976 GMC C25 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 GMC JIMMY

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973 GMC C35/C3500 PICKUP

    • CC: 5736
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1982 GMC JIMMY

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983 CHEVROLET K10 PICKUP

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~Must Remove The Rubber Stopper Below The Starter~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: BIG TEN
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1977 CHEVROLET K10 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: SILVERADO
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1978 GMC C25/C2500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974 GMC C25/C2500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1982 CHEVROLET K20 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985-1986 GMC K3500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 GMC C1500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 GMC C25/C2500 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET C20 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1982 CHEVROLET K10 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985-1986 CHEVROLET K10 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 GMC R2500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1968 GMC K15/K1500 SUBURBAN

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1979-1982 GMC K2500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983-1984 CHEVROLET BLAZER K5

    • CC: 5031
    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~Must Remove The Rubber Stopper Below The Starter~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983 CHEVROLET K10 PICKUP

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~Must Remove The Rubber Stopper Below The Starter~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • Aspiration: N
    • SubModel: SCOTTSDALE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1979 CHEVROLET C30 PICKUP

    • CC: 5031
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983-1984 CHEVROLET BLAZER K5

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~Must Remove The Rubber Stopper Below The Starter~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1986 CHEVROLET K30 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1984 GMC K3500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~Must Remove The Rubber Stopper Below The Starter~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 GMC C25 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978 CHEVROLET K5 BLAZER

    • CC: 5031
    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1972 GMC C1500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 GMC K25/K2500 SUBURBAN

    • CC: 5358
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1984 CHEVROLET K10 SUBURBAN

    • CC: 5031
    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~Must Remove The Rubber Stopper Below The Starter~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987 CHEVROLET R20 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1978 GMC K25 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1981 CHEVROLET K20 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979 CHEVROLET K10 SUBURBAN

    • CC: 5031
    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~w/Oxy. Sensor - Use REducer PN[10110FLT] For 3 in. Flange~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983 GMC K3500 PICKUP

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~Must Remove The Rubber Stopper Below The Starter~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1978 GMC K25 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1972-1973 CHEVROLET C20 PICKUP

    • CC: 5736
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985-1986 GMC C2500 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K20 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1984 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~Must Remove The Rubber Stopper Below The Starter~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1970-1972 GMC K25/K2500 SUBURBAN

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1969 GMC C25/C2500 PICKUP

    • CC: 5031
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1976 GMC C1500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1985-1987 GMC JIMMY

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1986 GMC C3500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978-1982 GMC JIMMY

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: STREET COUPE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1984 CHEVROLET K10 PICKUP

    • CC: 5031
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~Must Remove The Rubber Stopper Below The Starter~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978 CHEVROLET C10 PICKUP

    • CC: 5031
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1977 GMC C15 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET C10 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976-1980 CHEVROLET C10 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: CHEYENNE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1982 GMC K1500 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1977-1978 GMC K25 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979-1982 GMC K2500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985 CHEVROLET K20 PICKUP

    • CC: 5031
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1985-1986 GMC K2500 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET K20 SUBURBAN

    • CC: 5736
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982 GMC K1500 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1966 CHEVROLET K20 PICKUP

    • CC: 5358
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~w/Exhaust Manifold Mounted Alternator; Use Bracket PN[10031FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1977-1978 GMC C25 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1978 GMC K15 SUBURBAN

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1986 GMC C2500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975-1978 GMC C25/C2500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985-1986 GMC K1500 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1979 CHEVROLET K30 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 6.6
    • SubModel: SCOTTSDALE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1983 GMC K1500 PICKUP

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Req. A/C Bracket PN[10042FLT]~Must Remove The Rubber Stopper Below The Starter~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1982 CHEVROLET K20 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1981 CHEVROLET C20 PICKUP

    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads
    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )
    11500 - FlowTech Headers is rated 5.0 out of 5 by 2.
    • y_2016, m_12, d_7, h_13
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    Rated 5 out of 5 by from Excellence in delivery. Flowtech headers Easy installation! Flowtech kit comes with everything except power steering mount header bolt!
    Date published: 2015-06-04
    Rated 5 out of 5 by from
    Date published: 2016-04-13
    • y_2016, m_12, d_7, h_13
    • bvseo_bulk, prod_bvrr, vn_bulk_0.0
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