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- Meticulously Engineered.
- Manufactured to Highest Quality Standards.
- Provided By a Trusted Brand Synonymous with High-Quality Performance, Value and Dependability.
Flowtech 31500 Details
GM Truck/SUV
Specifications:
Application
Automotive
Tube Direction
Down Swept
Gaskets Included
Yes
Header Finish
Silver ceramic coated
Header Material
Steel
Header Style
Full-length
Motor Mounts Included
No
Tuned
No
Bolts/Studs Included
Yes
Catalytic Converter(s) Included
No
Cross Over Pipe Included
No
Reducers Included
Yes
Transmission Mount Included
No
Weld-Up
No
Primary Tube Diameter (in.)
1 1/2
Quantity
Sold as a pair
Primary Tube Gauge
18-gauge
Flange Style
Standard
Collector Attachment
3-bolt flange
Collector Diameter (in.)
3
Manufacturer's Part Number:
31500
Shipping Weight:
27
Package Height:
37
Package Depth:
19
Package Width:
10
Flowmaster is a smart choice for quality performance exhaust headers at a great price. All Flowtech Headers are sold in pairs and are available in mild steel, 304 or 409 stainless steel with either a natural, painted, ceramic coated or polished finish. Features: Bolt-On Performance!
Does Flowtech 31500 fit your vehicle?
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1970 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1983-1984 CHEVROLET C10 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: CUSTOM
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1985-1986 CHEVROLET K20 SUBURBAN
- CC: 5031
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: CUSTOM
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SILVERADO
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1986 CHEVROLET C10 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: CUSTOM
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1977-1978 CHEVROLET K20 SUBURBAN
- CC: 5031
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: CUSTOM DELUXE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1987 CHEVROLET R20 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: CUSTOM DELUXE
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SIERRA CLASSIC
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: CUSTOM DELUXE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1982-1986 CHEVROLET C10 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SCOTTSDALE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1976-1978 GMC C35/C3500 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1987 GMC R1500 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SIERRA CLASSIC
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1987 CHEVROLET V10 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SILVERADO
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1973 CHEVROLET C20 PICKUP
- CC: 5031
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: BASE
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1967-1968 GMC K1500 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.3
- SubModel: BASE
- CUI: 327
- EngineType: V8 ( 5.3 L / 327 )
1987 CHEVROLET R30 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SCOTTSDALE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1972 GMC K25/K2500 PICKUP
- CC: 5736
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1977-1978 GMC C25 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1989-1991 CHEVROLET R1500 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SILVERADO
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1979-1980 GMC K2500 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1968 CHEVROLET C20 PICKUP
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.4
- SubModel: BASE
- CUI: 327
- EngineType: V8 ( 5.4 L / 327 )
1980 CHEVROLET K20 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- Aspiration: N
- SubModel: SCOTTSDALE
- Engine Vin: X
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1975-1978 GMC K15 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SIERRA CLASSIC
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1975-1980 CHEVROLET K20 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: CUSTOM DELUXE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1978 CHEVROLET C10 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: CUSTOM DELUXE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1987 GMC V3500 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1989-1991 CHEVROLET R3500 PICKUP
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: CHEYENNE
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: SIERRA GRANDE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1977-1979 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: CUSTOM DELUXE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1973 CHEVROLET C10 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1975-1978 GMC K15 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1979-1980 GMC K1500 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: HIGH SIERRA
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1975-1978 GMC C35/C3500 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SIERRA CLASSIC
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1983-1984 GMC K2500 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1977-1978 GMC K35 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: SIERRA CLASSIC
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1987 CHEVROLET V10 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: CUSTOM DELUXE
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: BIG TEN
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1976 GMC C1500 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1983-1984 CHEVROLET K20 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: CUSTOM
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1981 CHEVROLET K20 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: DELUXE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1974 GMC C25/C2500 PICKUP
- CC: 5737
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1983-1984 CHEVROLET K10 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: CUSTOM
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1968 GMC K1500 PICKUP
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.4
- SubModel: BASE
- CUI: 327
- EngineType: V8 ( 5.4 L / 327 )
1983-1984 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: HIGH SIERRA
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1987 CHEVROLET R30 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SILVERADO
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1974 GMC K25/K2500 PICKUP
- CC: 5737
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1978 GMC C25 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1973 CHEVROLET K20 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: BASE
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1987 CHEVROLET R20 PICKUP
- CC: 5031
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: CUSTOM DELUXE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1983-1984 GMC K2500 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SIERRA CLASSIC
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1977-1978 CHEVROLET C20 PICKUP
- CC: 5031
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: CHEYENNE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1975-1977 GMC C1500 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1969 CHEVROLET K20 SUBURBAN
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: BASE
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1976-1977 CHEVROLET C20 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: SILVERADO
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1975-1978 GMC K15 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: SIERRA CLASSIC
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1977-1979 CHEVROLET K10 SUBURBAN
- CC: 5031
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: SCOTTSDALE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1987 CHEVROLET R10 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SILVERADO
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1972 CHEVROLET K10 SUBURBAN
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: BASE
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1974 GMC C1500 PICKUP
- CC: 5737
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1970 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1985-1986 CHEVROLET K20 SUBURBAN
- CC: 5031
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: SCOTTSDALE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1981 CHEVROLET C10 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- EngineType: ALL
- SubModel: DELUXE
1969 CHEVROLET BLAZER
- CC: 5031
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: BASE
- CUI: 307
- EngineType: V8 ( 5.0 L / 307 )
1989-1990 CHEVROLET R3500 PICKUP
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SCOTTSDALE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1975-1978 GMC K25 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: BASE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1981-1986 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: SILVERADO
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1983-1984 GMC C2500 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: BASE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1975-1977 GMC C15 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1978 CHEVROLET C30 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SCOTTSDALE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1974 CHEVROLET C10 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1975-1978 GMC K15 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: HIGH SIERRA
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1990-1991 CHEVROLET BLAZER
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SCOTTSDALE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1989-1991 CHEVROLET V3500 PICKUP
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SILVERADO
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1973 CHEVROLET K10 SUBURBAN
- CC: 5736
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1982 GMC K1500 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: HIGH SIERRA
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1976-1980 CHEVROLET C20 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: CUSTOM DELUXE
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1979-1980 CHEVROLET K10 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SILVERADO
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: SIERRA CLASSIC
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1979-1982 GMC K2500 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: HIGH SIERRA
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1978 GMC C35/C3500 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: SIERRA GRANDE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1987-1988 CHEVROLET R20 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SILVERADO
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: HIGH SIERRA
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1978 GMC C15 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: HIGH SIERRA
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1983-1984 GMC K2500 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SIERRA CLASSIC
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1982-1986 GMC C1500 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1979-1982 GMC K3500 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BASE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1987-1988 CHEVROLET V10 SUBURBAN
- Fitment_Note: 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SCOTTSDALE
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
1975-1978 CHEVROLET K10 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: CHEYENNE
- 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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: HIGH SIERRA
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1977-1979 CHEVROLET C20 PICKUP
- CC: 5031
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: SCOTTSDALE
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1975-1980 GMC K1500 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 6.6
- SubModel: HIGH SIERRA
- CUI: 400
- EngineType: V8 ( 6.6 L / 400 )
1979-1986 GMC C3500 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: SIERRA CLASSIC
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
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~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.0
- SubModel: HIGH SIERRA
- CUI: 305
- EngineType: V8 ( 5.0 L / 305 )
1978-1979 CHEVROLET C10 PICKUP
- Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
- Liter: 5.7
- SubModel: BIG TEN
- CUI: 350
- EngineType: V8 ( 5.7 L / 350 )
31500 is rated
out of
5 by
1.
Rated 5 out of
5
by
norman from
installed flow tech ceramic coated headers ,,worked out great sounds really good opened up,thanks
Date published: 2015-02-14
Only $419.99
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Ships directly from the manufacturer
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.