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.
This set is part of Hedman's ELITE line of headers. Hedman ELITE headers have a heavy-duty design that uses stout 3/8 in. flanges, and thicker 14 gauge primary tubes. The heavier-duty construction of HEDMAN ELITE Hedders makes them ideal for high-performance engines and tow vehicles, both of which produce higher exhaust temperatures.
ELITE models have a MATTE-SILVER ceramic finish that can withstand temperatures up to 1400 degrees F. The coating looks great and keeps more heat in the tubes. This results in faster exhaust speeds for improved exhaust scavenging, and reduced underhood temperatures.
These LONG-TUBE headers fit 1967-1991 4WD 1/2 and 3/4 ton Chevy Trucks, Blazers and Suburbans, powered by a Small Block Chevy engine (check the application listings for exact fitment). 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.
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. The ceramic-metallic finish is covered by a 5-year factory warranty, in addition to Hedman's standard lifetime header warranty.
- Heavy-Duty ELITE Header Construction With Thick 3/8 in. Flanges and 14g Primary Tubes To Hold Up To The Added Tortures Of High-Performance and Truck Engines.
- Thermal Coating Keeps More Heat In The Headers To Keep Underhood Temps Down and Protect Against Corrosion.
- 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 K10 |
| 1967-1973 | Chevrolet K10 Pickup |
| 1968-1986 | Chevrolet K10 Suburban |
| 1988-1991 | Chevrolet K1500 |
| 1975-1986 | Chevrolet K20 |
| 1967-1973 | Chevrolet K20 Pickup |
| 1968-1986 | Chevrolet K20 Suburban |
| 1988-1991 | Chevrolet K2500 |
| 1987-1988 | Chevrolet V10 Suburban |
| 1989-1991 | Chevrolet V1500 Suburban |
| 1987-1988 | Chevrolet V20 Suburban |
| 1989-1991 | Chevrolet V2500 Suburban |
| 1970-1991 | GMC Jimmy |
| 1975-1978 | GMC K15 |
| 1975-1978 | GMC K15 Suburban |
| 1967-1973 | GMC K15/K1500 Pickup |
| 1968-1974 | GMC K15/K1500 Suburban |
| 1979-1986 | GMC K1500 |
| 1988-1991 | GMC K1500 |
| 1979-1986 | GMC K1500 Suburban |
| 1975-1978 | GMC K25 |
| 1975-1978 | GMC K25 Suburban |
| 1967-1973 | GMC K25/K2500 Pickup |
| 1968-1974 | GMC K25/K2500 Suburban |
| 1979-1986 | GMC K2500 |
| 1988-1991 | GMC K2500 |
| 1979-1986 | GMC K2500 Suburban |
| Attributes | |
| Air Conditioning | Yes, Yes, Yes |
| Application | Automotive |
| ASIN | B000COD3OE |
| Automatic Transmission - Column | Yes, Yes, Yes |
| Automatic Transmission - Floor | Yes, Yes, Yes |
| Bolts/Studs Included | Yes, Yes, Yes |
| California Proposition 65 | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Catalytic Converter(s) Included | No, No, No |
| Coating/Finish | Metallic Ceramic |
| 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 | Stock Profile Heads, Stock Profile Heads, Stock Profile Heads |
| Cylinder Head Port Shape | Oval, Oval, Oval |
| Drivetrain | 4WD |
| E.O. # | No, No |
| Emission Code | Not in CA |
| Emissions Notes | NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only., NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only., Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only. |
| Engine Make/Size | Chevy Small Block (262-400) |
| Exhaust System Dia | 2-1/2", 2-1/2 in., 2-1/2 in. |
| Finish | Matte Silver Ceramic-Metallic, Matte Silver Ceramic-Metallic |
| Finish Type | MATTE SILVER Ceramic-metallic coated, MATTE SILVER Ceramic-metallic coated, MATTE SILVER Ceramic-metallic coated |
| Flange Style | Standard, Standard, Standard |
| FLANGE Thickness | 0.375", 0.375 in., 0.375 in. |
| Gasket # | 27520 |
| Gasket Or Seal Included | Yes, Yes, Yes |
| Harmonized Tariff Code (Schedule B) | 8708925000 |
| Hazardous Material Code | N |
| Head Flange Gasket | 27520 |
| Header Construction | ELITE Heavy-Duty, MILD STEEL- ELITE Heavy-Duty, MILD STEEL- ELITE Heavy-Duty |
| Header Fasteners Included | Yes, Yes |
| Header Finish | Matte Silver Ceramic-Metallic, Matte Silver Ceramic-Metallic, Matte Silver Ceramic-Metallic |
| Header Material | Mild Steel, Mild Steel, Mild Steel |
| Header Port Shape | Oval Port, Oval Port, Oval Port |
| Header Style | Long Tube, Long Tube |
| Installation Hardware Included | Yes, Yes, Yes |
| Life Cycle Status Code | Available to Order |
| Manual Transmission - Column | Yes, Yes, Yes |
| Manual Transmission - Floor | Yes, Yes, Yes |
| 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 | 67-91 GM 3/4, 1 Ton Truck, SUV 283-400 4WD, 67-91 GM 3/4, 1 Ton Truck, SUV 283-400 4WD |
| 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 | Oval, Oval, Oval |
| Power Steering | Yes, Yes, Yes |
| Primary Tube Diameter (in) | 1.625", 1.625 in., 1.625 in. |
| Primary Tube Gauge | 14g, 14g, 14g |
| 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 | 27520, 27520, 27520 |
| Replacement Head Flange Gasket | 27520, 27520 |
| SDR Required Flag | N |
| Transmission Mount Included | NO |
| Transmission Mount/Crossmember (Included) | No, No |
| Transmission Mount/Crossmember Included | No |
| Tube Design | LONG TUBE, 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 | 14g, 14g, 14g |
| Tube Size | 1.625, 1-5/8", 1-5/8 in., 1-5/8 in. |
| Tube Style | Long Tube, Long Tubes, Long Tubes |
| Tuned | NO, No, No |
| Variations | 69236, 69236, 69236 |
| Weld-Up | No, No, No |
| with A.I.R. | No |
| with A.I.R. System | No, No, No |
| with EGR | No, No, No |
| Y-Pipe Included | No, No, No |
| GTIN | 00732611698306 |