- MILD STEEL HEADERS; LONG; 67-91 2WD/4WD SB CHEVY TRUCKS/SUVS; 1-5/8 IN.-UNCOATED
- Air Conditioning: 1970 or later large piston A/C compressors require Hedman A/C Bracket 20110 Power Steering: Yes Auto Transmission - Column: Yes Auto Transmission - Floor: Yes Manual Transmission - Column: No Footnotes: (1) Without smog injection or injection heads. Footnotes: (103) Will fit with angle plug heads (Chevy aluminum only, L98). Footnotes: (121) Must modify rotary A/C bracket. Footnotes: (160) Early chassis only. Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles. Y-Pipe Included:No with EGR:No with A.I.R. System:No Package Contents:Set of Headers, mounting hardware and gaskets Installation Hardware Included:Yes Replacement Gasket:27500 Cylinder Head:Fits Factory GM Aluminum or Cast Iron, Angle Plug and Straight Plug Heads. Quantity:Sold as a pair. Motor Mounts Included:No Crossover Pipe Included:No Catalytic Converter(s) Included:No Collector Bolts Included:Yes Catalog Code:HED Weld-Up:No Tuned:No Primary Tube Gauge:16g Primary Tube Diameter (in):1.625 in. Mounting Hardware Included:Yes Header Material:Mild Steel Header Finish:Uncoated Cylinder Head Port Shape:Round Variations:69096, 69890 Tube Size:1-5/8 in. Tube Material Thickness:16g Tube Length:Long Tubes Tube Diameter:1-5/8 in. Tube Design:LONG TUBES Reducer Outlet Size:2-1/2 in. Power Steering:Yes Port Shape:Round Material:Mild Steel Manual Transmission - Floor:No Manual Transmission - Column:No Header Port Shape:Round Replacement Head Flange Gasket:27500 Flange Style:Standard Finish Type:Uncoated Mild steel Finish:Uncoated Exhaust System Dia:2-1/2 in. Transmission Compatibility:may encounter clutch interference if cross shaft behind driver side rear port Collector Style:Ball and Socket Style (Gasketless) Collector Size:3 in. Automatic Transmission - Floor:Yes Automatic Transmission - Column:Yes Air Conditioning:Yes Reducers Included:Yes Header Style:Long Tube Gasket Or Seal Included:Yes Collector Attachment:3 in. Flange Thickness:0.25 in. Bolts/Studs Included:Yes Header Construction:Standard-Duty E.O. #:No California Proposition 65:WARNING: Cancer. For more info visit www.P65Warnings.ca.gov Contents:headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware Emissions Notes:NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only. Title:HEDMAN HEDDERS STANDARD UNCOATED HEADERS; 1-5/8 IN. TUBE DIA.; 3 IN. COLL.; FULL LENGTH DESIGN Collector Diameter:3 in. Notes :67-91 GM. Full Size Blazer, Jimmy 283-400 2-4WD Chassis Compatibility:NOT For Vehicles With Offset (right) Engine Position! Tube Style:Long Tubes
- Long Tube, Standard-Duty Headers For 1967-91 Chevy/GMC 2WD & 4WD Pickup Trucks, Blazers & SUVs with 283-400 SB Chevy; 1-5/8 In. Long Tubes, 3 in. Ball/Socket Collector- UNCOATED Mild Steel
- Product Attributes:
- California Proposition 65: Warning: Cancer. For More Info Visit Www.p65warnings.ca.gov
- Header Port Shape: Round
- Quantity: Sold As A Pair.
- with A.I.R. System: No
- Cylinder Head:
- Fits Factory Gm Aluminum Angle Plug And Straight Plug Heads.
- Fits Factory Gm Aluminum Or Cast Iron, Angle Plug And Straight Plug Heads.
- Tuned: No
- Cylinder Head Port Shape: Round
- Header Style: Long Tube
- Manual Transmission - Column: No
- Flange Style: Standard
- Collector Bolts Included: Yes
- Bolts/Studs Included: Yes
- Chassis Compatibility: Not For Vehicles With Offset (right) Engine Position!
- Automatic Transmission - Floor: Yes
- with EGR: No
- Tube Material Thickness: 16g
- Tube Diameter: 1-5/8 In.
- Automatic Transmission - Column: Yes
- Package Contents: Headers, Ball And Socket Reducers (exhaust Adapters), Gaskets, Mounting Hardware
- Reducer Outlet Size: 2-1/2 In.
- Tube Size: 1-5/8 In.
- Port Shape: Round
- Tube Length: Long Tubes
- Manual Transmission - Floor: No
- Collector Diameter: 3 In.
- Tube Style: Long Tubes
- Variations: 69096, 69890
- Collector Size: 3 In.
- Header Finish: Uncoated
- Mounting Hardware Included: Yes
- Weld-Up: No
- Collector Attachment: 3 In.
- Header Fasteners Included: Yes
- Y-Pipe Included: No
- Contents: Headers, Gaskets (when Applicable), 3-bolt Exhaust Adapters, Hardware
- Finish Type: Uncoated Mild Steel
- Notes: 67-91 Gm. Full Size Blazer, Jimmy 283-400 2-4wd
- Motor Mounts Included: No
- Primary Tube Diameter (in): 1.625 In.
- Crossover Pipe Included: No
- Header Construction:
- Mild Steel- Standard-duty
- Standard-duty
- Replacement Head Flange Gasket: 27500
- Tube Design:
- Long Tubes
- Standard
- Power Steering: Yes
- E.O. #: No
- Exhaust System Dia: 2-1/2 In.
- Flange Thickness:
- 0.25 In.
- 0.3125 In.
- Air Conditioning: Yes
- Installation Hardware Included: Yes
- Reducers Included: Yes
- Primary Tube Gauge: 16g
- Header Material: Mild Steel
- Title: Hedman Hedders Standard Uncoated Headers; 1-5/8 In. Tube Dia.; 3 In. Coll.; Full Length Design
- Catalytic Converter(s) Included: No
- Replacement Gasket: 27500
- Collector Style: Ball And Socket Style (gasketless)
- Emissions Notes: Not Legal For Street Use On '75-later Model Years! Legal For Off-road Use Only.
- Transmission Compatibility: May Encounter Clutch Interference If Cross Shaft Behind Driver Side Rear Port
-
Features:
- Handcrafted, Mild Steel Construction.
- Long Tube Header Design Provides Excellent Top-End Horsepower and Torque.
- Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors
- Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters)
- Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating!
- Proud To Say, Made In The USA, Since 1954!
Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing LONG and MID-LENGTH tube headers for Chevy trucks for nearly as long. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your Small Block Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
These uncoated, LONG-TUBE headers are one of Hedman's best selling Chevy truck headers. They fit a wide range of early to mid-year 1967-1987 2WD & 4WD Chevy/GMC 1/2 Ton and 3/4 ton trucks, Blazers and Suburbans (check the application listings for exact fitment), powered by a Small Block Chevy engine (without A.I.R. System). The smooth 1-5/8 in. tube design provides ample exhaust flow to let your truck's 283-400 SB Chevy engine breathe easy, and produce maximum horsepower and torque. These headers are uncoated, and ship from the factory with a temporary black paint that will burn off when submitted to normal operating temperatures. For protection against the element and lower under hood temperatures, these headers are also available with a silver or black ceramic-metallic finish.
Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.
Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.
| Vehicle | Region |
|---|---|
| 1991 - GMC R3500 | United States |
- 88-95 CHEVY 2WD/4WD PICKUP WITH SB- UNCOATED
- Air Conditioning: Yes Power Steering: Yes Auto Transmission - Column: Yes Auto Transmission - Floor: Yes Manual Transmission - Column: No Manual Transmission - Floor: Yes Footnotes: (1) Without smog injection or injection heads. Footnotes: (121) Must modify rotary A/C bracket. Footnotes: (127) Late model chassis. Engine offset to passenger side of vehicle. Footnotes: (6) Modification to stock exhaust required to retain catalytic converter. Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles. Y-Pipe Included:No with EGR:No with A.I.R. System:No Package Contents:Set of Headers, mounting hardware and gaskets Installation Hardware Included:Yes Replacement Gasket:27500 Cylinder Head:Stock Profile Heads Quantity:Sold as a pair. Motor Mounts Included:No Crossover Pipe Included:No Catalytic Converter(s) Included:No Collector Bolts Included:Yes Catalog Code:HED Weld-Up:No Tuned:No Primary Tube Diameter (in):1.625 in. Mounting Hardware Included:Yes Header Material:Mild Steel Header Finish:Uncoated Cylinder Head Port Shape:Round Variations:69446, 69840 Tube Size:1-5/8 in. Tube Material Thickness:16g Tube Length:Long Tubes Tube Diameter:1-5/8 in. Tube Design:LONG TUBES Reducer Outlet Size:2-1/2 in. Power Steering:Yes Port Shape:Round Material:Mild Steel Manual Transmission - Floor:Yes Manual Transmission - Column:No Header Port Shape:Round Replacement Head Flange Gasket:27500 Flange Style:Standard Finish Type:Uncoated Mild steel Finish:Uncoated Exhaust System Dia:2-1/2 in. Collector Style:Ball and Socket Style (Gasketless) Collector Size:3 in. Automatic Transmission - Floor:Yes Automatic Transmission - Column:Yes Air Conditioning:Yes Reducers Included:Yes Header Style:Long Tube Gasket Or Seal Included:Yes Collector Attachment:3 in. Flange Thickness:0.25 in. Bolts/Studs Included:Yes Header Construction:Standard-Duty E.O. #:No California Proposition 65:WARNING: Cancer. For more info visit www.P65Warnings.ca.gov Contents:headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware Title:HEDMAN HEDDERS STANDARD UNCOATED HEADERS; 1-5/8 IN. TUBE DIA.; 3 IN. COLL.; FULL LENGTH DESIGN Notes :Fits models with engine mounted offset to the passenger side of the vehicle. If engine is mounted in the center of the vehicle use HED-69090. Tube Style:Long Tubes Collector Diameter:3 in. Emissions Notes:NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only. Primary Tube Gauge:16g
- HEADERS FOR '88-95 CHEVY 2WD/4WD PICKUP WITH SB; 1-5/8 in. TUBE; 3 in. COLLECTOR- UNCOATED
- Product Attributes:
- California Proposition 65: Warning: Cancer. For More Info Visit Www.p65warnings.ca.gov
- Header Port Shape: Round
- Quantity: Sold As A Pair.
- with A.I.R. System: No
- Cylinder Head: Stock Profile Heads
- Tuned: No
- Cylinder Head Port Shape: Round
- Header Style: Long Tube
- Manual Transmission - Column: No
- Flange Style: Standard
- Collector Bolts Included: Yes
- Bolts/Studs Included: Yes
- Automatic Transmission - Floor: Yes
- with EGR: No
- Tube Material Thickness: 16g
- Tube Diameter: 1-5/8 In.
- Automatic Transmission - Column: Yes
- Package Contents: Headers, Ball And Socket Reducers (exhaust Adapters), Gaskets, Mounting Hardware
- Reducer Outlet Size: 2-1/2 In.
- Tube Size: 1-5/8 In.
- Port Shape: Round
- Tube Length: Long Tubes
- Manual Transmission - Floor: Yes
- Collector Diameter: 3 In.
- Tube Style: Long Tubes
- Variations: 69446, 69840
- Collector Size: 3 In.
- Header Finish: Uncoated
- Mounting Hardware Included: Yes
- Weld-Up: No
- Collector Attachment: 3 In.
- Header Fasteners Included: Yes
- Y-Pipe Included: No
- Contents: Headers, Gaskets (when Applicable), 3-bolt Exhaust Adapters, Hardware
- Finish Type: Uncoated Mild Steel
- Notes: Fits Models With Engine Mounted Offset To The Passenger Side Of The Vehicle. If Engine Is Mounted In The Center Of The Vehicle Use Hed-69090.
- Motor Mounts Included: No
- Primary Tube Diameter (in): 1.625 In.
- Crossover Pipe Included: No
- Header Construction:
- Mild Steel- Standard-duty
- Standard-duty
- Replacement Head Flange Gasket: 27500
- Tube Design:
- Long Tubes
- Standard
- Power Steering: Yes
- E.O. #: No
- Exhaust System Dia: 2-1/2 In.
- Flange Thickness:
- 0.25 In.
- 0.3125 In.
- Air Conditioning: Yes
- Installation Hardware Included: Yes
- Reducers Included: Yes
- Primary Tube Gauge: 16g
- Header Material: Mild Steel
- Title: Hedman Hedders Standard Uncoated Headers; 1-5/8 In. Tube Dia.; 3 In. Coll.; Full Length Design
- Catalytic Converter(s) Included: No
- Replacement Gasket: 27500
- Collector Style: Ball And Socket Style (gasketless)
- Emissions Notes: Not Legal For Street Use On '75-later Model Years! Legal For Off-road Use Only.
-
Features:
- Handcrafted, Mild Steel Construction.
- Long Tube Header Design Provides Excellent Top-End Horsepower and Torque.
- Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors
- Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters)
- Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating!
- Proud To Say, Made In The USA, Since 1954!
Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing long and mid-length tube headers for Chevy trucks for nearly as long. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your 5.0L / 5.7L SB Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
These uncoated, LONG-TUBE headers fit 1988-95 2WD and 4WD 1/2, 3/4 & 1 ton Chevy Trucks with a factory 5.0L or 5.7L Chevy powerplant (check the application listings for exact fitment). The smooth 1-5/8 in. tube design provides ample exhaust flow to let your OBS Chevy truck's factory Small Block engine breathe easy, and produce maximum horsepower and torque.
These headers are uncoated, and ship from the factory with a temporary black paint that will burn off when submitted to normal operating temperatures. For protection against the element and lower underhood temperatures, these headers are also available with a silver or black ceramic-metallic finish.
Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.
Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.
| Vehicle | Region | Fuel Type |
|---|---|---|
| 1991 - GMC R3500 | United States | GAS |
- 88-95 CHEVY 2WD/4WD PICKUP WITH SB- UNCOATED
- Air Conditioning: Yes Power Steering: Yes Auto Transmission - Column: Yes Auto Transmission - Floor: Yes Manual Transmission - Column: No Manual Transmission - Floor: Yes Footnotes: (1) Without smog injection or injection heads. Footnotes: (121) Must modify rotary A/C bracket. Footnotes: (127) Late model chassis. ENGINE OFFSET to passenger side of vehicle. Footnotes: (6) Modification to stock exhaust required to retain catalytic converter. Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
- HEADERS FOR '88-95 CHEVY 2WD/4WD PICKUP WITH SB; 1-5/8 in. TUBE; 3 in. COLLECTOR- UNCOATED
- Product Attributes:
- California Proposition 65: Warning: Cancer. For More Info Visit Www.p65warnings.ca.gov
- Header Port Shape: Round
- Quantity: Sold As A Pair.
- with A.I.R. System: No
- Cylinder Head: Stock Profile Heads
- Tuned: No
- Cylinder Head Port Shape: Round
- Header Style: Long Tube
- Manual Transmission - Column: No
- Flange Style: Standard
- Collector Bolts Included: Yes
- Bolts/Studs Included: Yes
- Automatic Transmission - Floor: Yes
- with EGR: No
- Tube Material Thickness: 16g
- Tube Diameter: 1-5/8 In.
- Automatic Transmission - Column: Yes
- Package Contents: Headers, Ball And Socket Reducers (exhaust Adapters), Gaskets, Mounting Hardware
- Reducer Outlet Size: 2-1/2 In.
- Tube Size: 1-5/8 In.
- Port Shape: Round
- Tube Length: Long Tubes
- Manual Transmission - Floor: Yes
- Collector Diameter: 3 In.
- Tube Style: Long Tubes
- Variations: 69446, 69840
- Collector Size: 3 In.
- Header Finish: Uncoated
- Mounting Hardware Included: Yes
- Weld-Up: No
- Collector Attachment: 3 In.
- Header Fasteners Included: Yes
- Y-Pipe Included: No
- Contents: Headers, Gaskets (when Applicable), 3-bolt Exhaust Adapters, Hardware
- Finish Type: Uncoated Mild Steel
- Notes: Fits Models With Engine Mounted Offset To The Passenger Side Of The Vehicle. If Engine Is Mounted In The Center Of The Vehicle Use Hed-69090.
- Motor Mounts Included: No
- Primary Tube Diameter (in): 1.625 In.
- Crossover Pipe Included: No
- Header Construction: Mild Steel- Standard-duty
- Replacement Head Flange Gasket: 27500
- Tube Design: Standard
- Power Steering: Yes
- E.O. #: No
- Exhaust System Dia: 2-1/2 In.
- Flange Thickness: 0.3125 In.
- Air Conditioning: Yes
- Installation Hardware Included: Yes
- Reducers Included: Yes
- Primary Tube Gauge: 16g
- Header Material: Mild Steel
- Title: Hedman Hedders Standard Uncoated Headers; 1-5/8 In. Tube Dia.; 3 In. Coll.; Full Length Design
- Catalytic Converter(s) Included: No
- Replacement Gasket: 27500
- Collector Style: Ball And Socket Style (gasketless)
- Emissions Notes: Not Legal For Street Use On '75-later Model Years! Legal For Off-road Use Only.
-
Features:
- Handcrafted, Mild Steel Construction.
- Long Tube Header Design Provides Excellent Top-End Horsepower and Torque.
- Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors
- Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters)
- Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating!
- Proud To Say, Made In The USA, Since 1954!
Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing long and mid-length tube headers for Chevy trucks for nearly as long. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your 5.0L / 5.7L SB Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
These uncoated, LONG-TUBE headers fit 1988-95 2WD and 4WD 1/2, 3/4 & 1 ton Chevy Trucks with a factory 5.0L or 5.7L Chevy powerplant (check the application listings for exact fitment). The smooth 1-5/8 in. tube design provides ample exhaust flow to let your OBS Chevy truck's factory Small Block engine breathe easy, and produce maximum horsepower and torque.
These headers are uncoated, and ship from the factory with a temporary black paint that will burn off when submitted to normal operating temperatures. For protection against the element and lower underhood temperatures, these headers are also available with a silver or black ceramic-metallic finish.
Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.
Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.
| Vehicle | Block | CC | Region | Engine | Engine Version | CID |
|---|---|---|---|---|---|---|
| 1991 - GMC R3500 | V | - | United States | 8 Cyl 5.7L | Chevrolet | 350 |
- 1.5 in. Primary Tubing; 3 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;Intended For Race Use Only May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Req. A/C Bracket PN[10042FLT]~w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange
- Long Tube Headers; 1.5 in. Primary Tubing; 3 in. Collector Size; Mild Steel; Black Painted Finish; Gaskets; Hardware;
- Long Tube Headers
- Product Attributes:
- Tube Diameter: 1.500 In.
- Primary Tube Diameter: 1.500 In.
- WARNING CA Proposition 65: Yes
- Application: Automotive
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Coated Finish: Painted
- Port Shape: Round
- Engine Make/Size: Chevy Small Block (262-400)
- Tube Direction: Down Swept
-
Features:
- Fuel Economy From The Engine
- Leak Test For Max Performance
- Mandrel-Formed Power Plenum
- Leak-proof O-Ringed Port Seals
- Include All Mounting Hardware
- Precision Engineered For Fit
- Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16 flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat resistant black paint for a stealthy appearance.
| Vehicle | Block | CC | Engine | Body | CID |
|---|---|---|---|---|---|
| 1991 - GMC R3500 | V | - | 8 Cyl 5.7L | Crew Cab Pickup | 350 |
- 1.5 in. Primary Tubing; w/3 in. Collector; Mild Steel; Ceramic Coated;Intended For Race Use Only May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Req. A/C Bracket PN[10042FLT]~Must Modify Stock Exhaust To Retain Cat. Converter
- Ceramic Header; 1.5 in. Primary Tubing; w/3 in. Collector; Mild Steel; Ceramic Coated;
- Ceramic Header
- Product Attributes:
- Tube Diameter: 1.500 In.
- Primary Tube Diameter: 1.500 In.
- WARNING CA Proposition 65: Yes
- Application: Automotive
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Coated Finish: Metallic Ceramic
- Port Shape: Round
- Engine Make/Size: Chevy Small Block (262-400)
- Tube Direction: Down Swept
-
Features:
- Fuel Economy From The Engine
- Leak Test For Max Performance
- Ceramic Headers
- Rust And Corrosion Resistance
- Mandrel-Formed Power Plenum
- Leak-proof O-Ringed Port Seals
- Include All Mounting Hardware
- Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16 flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance.
| Vehicle | Block | CC | Engine | Body | CID |
|---|---|---|---|---|---|
| 1991 - GMC R3500 | V | - | 8 Cyl 5.7L | Crew Cab Pickup | 350 |
- Standard Uncoated Headers; 1-3/4 in. Tube Dia.; FULL LENGTH Design
- Air Conditioning: Yes Power Steering: Yes Auto Transmission - Column: Yes Auto Transmission - Floor: Yes Manual Transmission - Column: No Manual Transmission - Floor: Yes Footnotes: (1) Without smog injection or injection heads. Footnotes: (127) Late model chassis. Engine offset to passenger side of vehicle. Footnotes: (6) Modification to stock exhaust required to retain catalytic converter. Footnotes: (208) Due to cylinder heads (aluminum) generation 6 engines, 502 BB Chevy may have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles. Y-Pipe Included:No with EGR:No with A.I.R. System:No Package Contents:Set of Headers, mounting hardware and gaskets Installation Hardware Included:Yes Replacement Gasket:27530 Cylinder Head:Stock Profile Heads Quantity:Sold as a pair. Motor Mounts Included:No Crossover Pipe Included:No Catalytic Converter(s) Included:No Collector Bolts Included:Yes Catalog Code:HED Weld-Up:No Tuned:No Primary Tube Gauge:18g Primary Tube Diameter (in):1.75 in. Mounting Hardware Included:Yes Header Material:Mild Steel Header Finish:Uncoated Cylinder Head Port Shape:Round Variations:69456, 69850 Tube Size:1-3/4 in. Tube Material Thickness:18g Tube Length:Long Tubes Tube Diameter:1-3/4 in. Tube Design:LONG TUBES Reducer Outlet Size:2-1/2 in. Power Steering:Yes Port Shape:Round Material:Mild Steel Manual Transmission - Floor:Yes Manual Transmission - Column:No Header Port Shape:Round Replacement Head Flange Gasket:27530 Flange Style:Standard Finish Type:Uncoated Mild steel Finish:Uncoated Exhaust System Dia:2-1/2 in. Collector Style:Ball and Socket Style (Gasketless) Collector Size:3 in. Automatic Transmission - Floor:Yes Automatic Transmission - Column:Yes Air Conditioning:Yes Reducers Included:Yes Header Style:Long Tube Gasket Or Seal Included:Yes Collector Attachment:3 in. Flange Thickness:0.25 in. Bolts/Studs Included:Yes Header Construction:Standard-Duty E.O. #:No California Proposition 65:WARNING: Cancer. For more info visit www.P65Warnings.ca.gov Contents:headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware Title:HEDMAN HEDDERS STANDARD-DUTY UNCOATED HEADERS; 1-3/4 IN. TUBE; 3 IN. COLLECTOR; FULL-LENGTH DESIGN; 88-95 CHEVROLET & GMC 2WD 3/4 & 1 TON TRUCK 7.4L; 1990-93 CHEVROLET 1/2 TON 454 SS HEADER Collector Diameter:3 in. Notes :88-95 1/2, 3/4, 1 Ton Truck/SUV 396-502 Emissions Notes:NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only. Tube Style:Long Tubes
- UNCOATED Headers; 1-3/4 in. Tube; 3 in. Collector; FULL-LENGTH Design; 88-95 Chevrolet & GMC 2WD 3/4 & 1 Ton Truck 7.4L; 1990-93 Chevrolet 1/2 Ton 454 SS- Uncoated Mild Steel
- Product Attributes:
- California Proposition 65: Warning: Cancer. For More Info Visit Www.p65warnings.ca.gov
- Header Port Shape: Round
- Quantity: Sold As A Pair.
- with A.I.R. System: No
- Cylinder Head: Stock Profile Heads
- Tuned: No
- Cylinder Head Port Shape: Round
- Header Style: Long Tube
- Manual Transmission - Column: No
- Flange Style: Standard
- Collector Bolts Included: Yes
- Bolts/Studs Included: Yes
- Automatic Transmission - Floor: Yes
- with EGR: No
- Tube Material Thickness:
- 16g
- 18g
- Tube Diameter: 1-3/4 In.
- Automatic Transmission - Column: Yes
- Package Contents: Headers, Ball And Socket Reducers (exhaust Adapters), Gaskets, Mounting Hardware
- Reducer Outlet Size: 2-1/2 In.
- Tube Size: 1-3/4 In.
- Port Shape: Round
- Tube Length: Long Tubes
- Manual Transmission - Floor: Yes
- Collector Diameter: 3 In.
- Tube Style: Long Tubes
- Variations: 69456, 69850
- Collector Size: 3 In.
- Header Finish: Uncoated
- Mounting Hardware Included: Yes
- Weld-Up: No
- Collector Attachment: 3 In.
- Header Fasteners Included: Yes
- Y-Pipe Included: No
- Contents: Headers, Gaskets (when Applicable), 3-bolt Exhaust Adapters, Hardware
- Finish Type: Uncoated Mild Steel
- Notes: 88-95 1/2, 3/4, 1 Ton Truck/suv 396-502
- Motor Mounts Included: No
- Primary Tube Diameter (in): 1.75 In.
- Crossover Pipe Included: No
- Header Construction:
- Mild Steel- Standard-duty
- Standard-duty
- Replacement Head Flange Gasket: 27530
- Tube Design:
- Long Tubes
- Standard
- Power Steering: Yes
- E.O. #: No
- Exhaust System Dia: 2-1/2 In.
- Flange Thickness:
- 0.25 In.
- 0.3125 In.
- Air Conditioning: Yes
- Installation Hardware Included: Yes
- Reducers Included: Yes
- Primary Tube Gauge:
- 16g
- 18g
- Header Material: Mild Steel
- Title: Hedman Hedders Standard-duty Uncoated Headers; 1-3/4 In. Tube; 3 In. Collector; Full-length Design; 88-95 Chevrolet & Gmc 2wd 3/4 & 1 Ton Truck 7.4l; 1990-93 Chevrolet 1/2 Ton 454 Ss Header
- Catalytic Converter(s) Included: No
- Replacement Gasket: 27530
- Collector Style: Ball And Socket Style (gasketless)
- Emissions Notes: Not Legal For Street Use On '75-later Model Years! Legal For Off-road Use Only.
-
Features:
- Handcrafted, Mild Steel Construction.
- Long Tube Header Design Provides Excellent Top-End Horsepower and Torque.
- Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors
- Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters)
- Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating!
- Proud To Say, Made In The USA, Since 1954!
Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing long and mid-length tube headers for Chevy trucks for nearly as long. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your Big Block 7.4L Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
These uncoated, LONG-TUBE headers fit 1988-95 2WD 3/4 and 1 ton Chevy Trucks with a factory 7.4L Chevy powerplant (check the application listings for exact fitment). The smooth 1-3/4 in. tube design provides ample exhaust flow to let your OBS Chevy truck's Big Block engine breathe easy, and produce maximum horsepower and torque.
These headers are uncoated, and ship from the factory with a temporary black paint that will burn off when submitted to normal operating temperatures. For protection against the element and lower underhood temperatures, these headers are also available with a silver or black ceramic-metallic finish.
Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.
Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.
| Vehicle | Region |
|---|---|
| 1991 - GMC R3500 | United States |
- Standard Uncoated Headers; 1-3/4 in. Tube Dia.; FULL LENGTH Design
- Air Conditioning: Yes Power Steering: Yes Auto Transmission - Column: Yes Auto Transmission - Floor: Yes Manual Transmission - Column: No Manual Transmission - Floor: Yes Footnotes: (208) Due to cylinder heads (aluminum) generation 6 engines, 502 BB Chevy may have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. Footnotes: (1) Without smog injection or injection heads. Footnotes: (127) Late model chassis. ENGINE OFFSET to passenger side of vehicle. Footnotes: (6) Modification to stock exhaust required to retain catalytic converter. Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
- UNCOATED Headers; 1-3/4 in. Tube; 3 in. Collector; FULL-LENGTH Design; 88-95 Chevrolet & GMC 2WD 3/4 & 1 Ton Truck 7.4L; 1990-93 Chevrolet 1/2 Ton 454 SS- Uncoated Mild Steel
- Product Attributes:
- California Proposition 65: Warning: Cancer. For More Info Visit Www.p65warnings.ca.gov
- Header Port Shape: Round
- Quantity: Sold As A Pair.
- with A.I.R. System: No
- Cylinder Head: Stock Profile Heads
- Tuned: No
- Cylinder Head Port Shape: Round
- Header Style: Long Tube
- Manual Transmission - Column: No
- Flange Style: Standard
- Collector Bolts Included: Yes
- Bolts/Studs Included: Yes
- Automatic Transmission - Floor: Yes
- with EGR: No
- Tube Material Thickness: 16g
- Tube Diameter: 1-3/4 In.
- Automatic Transmission - Column: Yes
- Package Contents: Headers, Ball And Socket Reducers (exhaust Adapters), Gaskets, Mounting Hardware
- Reducer Outlet Size: 2-1/2 In.
- Tube Size: 1-3/4 In.
- Port Shape: Round
- Tube Length: Long Tubes
- Manual Transmission - Floor: Yes
- Collector Diameter: 3 In.
- Tube Style: Long Tubes
- Variations: 69456, 69850
- Collector Size: 3 In.
- Header Finish: Uncoated
- Mounting Hardware Included: Yes
- Weld-Up: No
- Collector Attachment: 3 In.
- Header Fasteners Included: Yes
- Y-Pipe Included: No
- Contents: Headers, Gaskets (when Applicable), 3-bolt Exhaust Adapters, Hardware
- Finish Type: Uncoated Mild Steel
- Notes: 88-95 1/2, 3/4, 1 Ton Truck/suv 396-502
- Motor Mounts Included: No
- Primary Tube Diameter (in): 1.75 In.
- Crossover Pipe Included: No
- Header Construction: Mild Steel- Standard-duty
- Replacement Head Flange Gasket: 27530
- Tube Design: Standard
- Power Steering: Yes
- E.O. #: No
- Exhaust System Dia: 2-1/2 In.
- Flange Thickness: 0.3125 In.
- Air Conditioning: Yes
- Installation Hardware Included: Yes
- Reducers Included: Yes
- Primary Tube Gauge: 16g
- Header Material: Mild Steel
- Title: Hedman Hedders Standard-duty Uncoated Headers; 1-3/4 In. Tube; 3 In. Collector; Full-length Design; 88-95 Chevrolet & Gmc 2wd 3/4 & 1 Ton Truck 7.4l; 1990-93 Chevrolet 1/2 Ton 454 Ss Header
- Catalytic Converter(s) Included: No
- Replacement Gasket: 27530
- Collector Style: Ball And Socket Style (gasketless)
- Emissions Notes: Not Legal For Street Use On '75-later Model Years! Legal For Off-road Use Only.
-
Features:
- Handcrafted, Mild Steel Construction.
- Long Tube Header Design Provides Excellent Top-End Horsepower and Torque.
- Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors
- Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters)
- Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating!
- Proud To Say, Made In The USA, Since 1954!
Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing long and mid-length tube headers for Chevy trucks for nearly as long. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your Big Block 7.4L Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
These uncoated, LONG-TUBE headers fit 1988-95 2WD 3/4 and 1 ton Chevy Trucks with a factory 7.4L Chevy powerplant (check the application listings for exact fitment). The smooth 1-3/4 in. tube design provides ample exhaust flow to let your OBS Chevy truck's Big Block engine breathe easy, and produce maximum horsepower and torque.
These headers are uncoated, and ship from the factory with a temporary black paint that will burn off when submitted to normal operating temperatures. For protection against the element and lower underhood temperatures, these headers are also available with a silver or black ceramic-metallic finish.
Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.
Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.
| Vehicle | Region |
|---|---|
| 1991 - GMC R3500 | United States |
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