Standard-Duty Uncoated, 50-State, Long-Tube Headers For 1967-87 CHEVY/GMC 2WD & 4WD, 1/2 to 1 Ton Pick-Up, SUV or Motorhome with 283-400 SB Chevy With A.I.R. (Centered Engine Chassis Only); 1-5/8 in. Tubes; 3 in. Ball/Socket Collector
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 use one of Hedman's best selling Chevy truck header tube configurations. 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 (with A.I.R. System).. They are covered by CARB E.O. (Executive Order) #D167-33, making them 50-State Legal for the vehicles listed on the arb.ca.gov website. 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.
- 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!
Application Summary:
| Year | Make/Model |
|---|---|
| 1969-1974 | Chevrolet Blazer |
| 1987-1991 | Chevrolet Blazer |
| 1975-1986 | Chevrolet C10 |
| 1967-1974 | Chevrolet C10 Pickup |
| 1967 | Chevrolet C10 Suburban |
| 1969-1986 | Chevrolet C10 Suburban |
| 1975-1986 | Chevrolet C20 |
| 1967-1974 | Chevrolet C20 Pickup |
| 1967 | Chevrolet C20 Suburban |
| 1969-1986 | Chevrolet C20 Suburban |
| 1975-1986 | Chevrolet C30 |
| 1967-1974 | Chevrolet C30 Pickup |
| 1975-1986 | Chevrolet K10 |
| 1967-1974 | Chevrolet K10 Pickup |
| 1967-1986 | Chevrolet K10 Suburban |
| 1975-1986 | Chevrolet K20 |
| 1967 | Chevrolet K20 Panel |
| 1967-1974 | Chevrolet K20 Pickup |
| 1967-1986 | Chevrolet K20 Suburban |
| 1975-1986 | Chevrolet K5 Blazer |
| 1987 | Chevrolet R10 |
| 1987-1988 | Chevrolet R10 Suburban |
| 1989-1991 | Chevrolet R1500 Suburban |
| 1987 | Chevrolet R20 |
| 1987-1988 | Chevrolet R20 Suburban |
| 1989-1991 | Chevrolet R2500 Suburban |
| 1987 | Chevrolet R30 |
| 1987 | Chevrolet V10 |
| 1987-1988 | Chevrolet V10 Suburban |
| 1989-1991 | Chevrolet V1500 Suburban |
| 1987 | Chevrolet V20 |
| 1987-1988 | Chevrolet V20 Suburban |
| 1989-1991 | Chevrolet V2500 Suburban |
| 1975-1978 | GMC C15 |
| 1975-1978 | GMC C15 Suburban |
| 1967-1974 | GMC C15/C1500 Pickup |
| 1967 | GMC C15/C1500 Suburban |
| 1969-1974 | GMC C15/C1500 Suburban |
| 1979-1986 | GMC C1500 |
| 1979-1986 | GMC C1500 Suburban |
| 1975-1978 | GMC C25 |
| 1975-1978 | GMC C25 Suburban |
| 1967-1974 | GMC C25/C2500 Pickup |
| 1967 | GMC C25/C2500 Suburban |
| 1969-1974 | GMC C25/C2500 Suburban |
| 1979-1986 | GMC C2500 |
| 1979-1986 | GMC C2500 Suburban |
| 1975-1978 | GMC C35 |
| 1967-1974 | GMC C35/C3500 Pickup |
| 1979-1986 | GMC C3500 |
| 1975-1978 | GMC K15 |
| 1975-1978 | GMC K15 Suburban |
| 1967-1974 | GMC K15/K1500 Pickup |
| 1967-1974 | GMC K15/K1500 Suburban |
| 1979-1986 | GMC K1500 |
| 1979-1986 | GMC K1500 Suburban |
| 1975-1978 | GMC K25 |
| 1975-1978 | GMC K25 Suburban |
| 1967-1974 | GMC K25/K2500 Pickup |
| 1967-1974 | GMC K25/K2500 Suburban |
| 1979-1986 | GMC K2500 |
| 1979-1986 | GMC K2500 Suburban |
| 1987 | GMC R1500 |
| 1987-1991 | GMC R1500 Suburban |
| 1987 | GMC R2500 |
| 1987-1991 | GMC R2500 Suburban |
| 1987 | GMC R3500 |
| 1987 | GMC V1500 |
| 1987-1991 | GMC V1500 Suburban |
| 1987 | GMC V2500 |
| 1987-1991 | GMC V2500 Suburban |
| Attributes | |
| Air Conditioning | Yes, Yes, Yes |
| Application | Automotive |
| ASIN | B000COBIP0 |
| Automatic Transmission - Column | Yes, Yes, Yes |
| Automatic Transmission - Floor | Yes, Yes, Yes |
| Bolts/Studs Included | Yes, Yes, Yes |
| California Proposition 65 | WARNING: Cancer - www.P65Warnings.ca.gov |
| Catalytic Converter(s) Included | NO, No, No |
| Chassis Compatibility | NOT For Vehicles With Offset (right) Engine Position!, NOT For Vehicles With Offset (right) Engine Position! |
| Coating/Finish | Painted |
| Collector Attachment | 3", 3 in., 3 in. |
| Collector Bolts Included | Yes, Yes, Yes |
| Collector Diameter | 3 in., 3 in. |
| Collector Size | 3", 3 in., 3 in. |
| Collector Style | Ball and Socket Style (Gasketless), BALL and SOCKET Style (Gasketless), BALL and SOCKET Style (Gasketless) |
| Collector Tube Size (in.) | 3 |
| Contents | headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware, headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware, One pair of headers, head flange gaskets, collector flange gaskets (when applicable), 3-bolt exhaust adapters, mounting hardware |
| Country of Origin (Primary) | US |
| Crossover Pipe Included | NO, No, No |
| Cylinder Head | Fits Factory GM Aluminum or Cast Iron, Angle Plug and Straight Plug Heads., Fits Factory GM Aluminum Angle Plug and Straight Plug Heads., Fits Factory GM Aluminum Angle Plug and Straight Plug Heads. |
| Cylinder Head Port Shape | Round, Round, Round |
| Drivetrain | 2WD |
| E.O. # | Yes, Yes, Yes |
| Emission Code | Legal US |
| Emissions Notes | EO# D167-33 (click here for covered vehicles in document on ARB.CA.GOV website), EO# D167-33 (click here for covered vehicles in document on ARB.CA.GOV website) |
| Engine Make/Size | Chevy Small Block 350, Chevy Small Block (262-400), Chevy Small Block 350 |
| Exhaust System Dia | 2-1/2", 2-1/2 in., 2-1/2 in. |
| Finish | Uncoated, Uncoated |
| Finish Type | Uncoated Mild steel, Uncoated Mild steel, UNCOATED Mild Steel! Shipped with Temporary Paint. |
| Flange Style | Standard, Standard, Standard |
| FLANGE Thickness | 0.25", 0.3125 in., 0.3125 in. |
| Gasket # | 27500 |
| Gasket Or Seal Included | Yes, Yes, Yes |
| Harmonized Tariff Code (Schedule B) | 8708925000 |
| Hazardous Material Code | N |
| Head Flange Gasket | 27500 |
| Header Construction | Standard-Duty, MILD STEEL- Standard-Duty |
| Header Fasteners Included | Yes, Yes |
| Header Finish | Uncoated, Uncoated, Uncoated |
| Header Material | Mild Steel, Mild Steel, Mild Steel |
| Header Port Shape | Round, Round, Round |
| Header Style | Long Tube, Long Tube |
| Installation Hardware Included | Yes, Yes, Yes |
| KEY FEATURE | With A.I.R., With A.I.R., With A.I.R. |
| Life Cycle Status Code | Available to Order |
| Manual Transmission - Column | No, No, No |
| Manual Transmission - Floor | No, No, No |
| Material | Mild Steel, Mild Steel |
| Motor Mounts (Included) | NO, No |
| Motor Mounts Included | NO, No, No |
| Mounting Hardware Included | Yes, Yes, Yes |
| NAFTA Preference Criterion Code | B |
| Notes | 82-91 GM. Full Size Blazer, Jimmy 283-400 2-4WD w/A.I.R., 82-91 GM. Full Size Blazer, Jimmy 283-400 2-4WD w/A.I.R., 82-91 GM. Full Size Blazer, Jimmy 283-400 2-4WD w/A.I.R. |
| Package Contents | One pair of headers, head flange gaskets, collector flange gaskets (when applicable), 3-bolt exhaust adapters, mounting hardware, Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware, Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
| Port Shape | Round, Round, Round |
| Power Steering | Yes, Yes, Yes |
| Primary Tube Diameter (in) | 1.625", 1.625 in., 1.625 in. |
| Primary Tube Gauge | 16g, 16g, 16g |
| Quantity | Sold as a pair., Sold as a pair., Sold as a pair. |
| Reducer Outlet Size | 2-1/2", 2-1/2 in., 2-1/2 in. |
| Reducers Included | Yes, Yes, Yes |
| Replacement Gasket | 27500, 27500, 27500 |
| Replacement Head Flange Gasket | 27500, 27500 |
| SDR Required Flag | N |
| Transmission Mount Included | NO |
| Transmission Mount/Crossmember (Included) | No, No |
| Transmission Mount/Crossmember Included | No |
| Tube Design | LONG TUBES, Standard |
| Tube Diameter | 1-5/8 in., 1-5/8" |
| Tube Direction | Down Swept |
| Tube Length | Long Tubes, Long Tubes, Long Tubes |
| Tube Material Thickness | 16g, 16g, 16g |
| Tube Size | 1.625, 1-5/8", 1-5/8", 1-5/8 in., 1-5/8 in. |
| Tube Style | Long Tubes, Long Tube, Long Tubes |
| Tuned | NO, No, No |
| Variations | 66091, 69891, 66091, 69891, 66091, 69891 |
| Weld-Up | No, No, No |
| with A.I.R. | Yes |
| with A.I.R. System | Yes, Yes, Yes |
| with EGR | No, No, No |
| Y-Pipe Included | No, No, No |
| GTIN | 00732611690911 |