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ELITE Headers with A.I.R. For Various Camaro, Chevelle, El Camino, Nova, Regal, Cutlass, Grand Prix & Others; SB Chevy 283-400; 1-5/8 in. Mid-Length Tubes, 3 in. Collector; 50 State Legal; H.D. Construction with Polished-Silver Finish
Hedman Hedders, began as a one man shop in 1954. Bob Hedman, founder of Hedman Hedders, sold his highly sought after exhaust tubes to fellow racers on the salt flats of the Mojave Desert. But, what started out as a way to make a few bucks to pay for Bob's racing hobby, quickly turned into the premier header manufacturer for both the racing and street header marketplaces.\n\nOriginally designed for straightline drag racers, word spread quickly about Hedman's reputation for building headers that gave you the best boost in power for your dollar. It wasn't long before Hedman Hedders was the brand of choice among racing's elite engine builders, racers and race series. Familiar names like Don Garlits, Warren Johnson, Shirley Muldowney, Bob Chandler and his BIG FOOT Race Team, and the IROC series.\n\nHedman Hedders constantly reshapes itself to meet environmental requirements and incorporates computer technology to ensure that its products offer the best performance improvement.\n\nWhether you're a Pro or sportsman racer, Hedman Hedders builds your headers with one goal in mind, optimum performance. Even if you're not a racer, the lessons Hedman learns at the track and on the dyno, make it into every street header we design.
This part fits the following vehicles.
| <i>COATED HEADERS DURING ENGINE BREAK-IN PERIOD</i> | <I><B><div style="background-color:red;color:white;padding:1%;">CLICK FOR IMPORTANT INFO REGARDING HEADER COATINGS DURING ENGINE BREAK-IN!</div></I></b> |
|---|---|
| Air Conditioning | Dependent on Vehicle (refer to VEHICLE APPLICATION Footnotes) |
| Automatic Transmission - Column | Yes |
| Automatic Transmission - Floor | Yes |
| Bolts/Studs Included | Yes |
| Catalytic Converter(s) Included | No |
| Collector Attachment | 3 in. |
| Collector Bolts Included | Yes |
| Collector Diameter | 3 in. |
| Collector Size | 3 in. |
| Collector Style | BALL and SOCKET Style (Gasketless) |
| Contents | headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware |
| Country Of Origin | US |
| Crossover Pipe Included | No |
| Cylinder Head | Fits Factory GM Aluminum Angle Plug and Straight Plug Heads. |
| Cylinder Head Port Shape | Oval |
| E.O. # | Yes |
| Emissions Notes | EO# D167-27 (click here for covered vehicles in document on ARB.CA.GOV website) |
| Engine | Chevy SB 283-400 (Gen 1) 1958-86 |
| Exhaust System Dia | 2-1/2 in. |
| Finish | Matte Silver Ceramic-Metallic |
| Finish Type | MATTE SILVER Ceramic-metallic coated |
| Flange Style | Standard |
| Flange Thickness | 0.375 in. |
| Gasket Or Seal Included | Yes |
| Header Construction | MILD STEEL- ELITE Heavy-Duty |
| Header Fasteners Included | Yes |
| Header Finish | Matte Silver Ceramic-Metallic |
| Header Material | Mild Steel |
| Header Style | Mid-Length Tube |
| Installation Hardware Included | Yes |
| Key Feature | With A.I.R. |
| LS SWAP | NO |
| Manual Transmission - Column | No |
| Manual Transmission - Floor | No |
| Material | Mild Steel |
| Motor Mounts Included | No |
| Mounting Hardware Included | Yes |
| Notes | 64-94 Various Chevy Car 283-400 |
| Package Contents | Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
| Port Shape | Oval |
| Power Steering | Yes |
| Primary Tube Diameter (in) | 1.625 in. |
| Primary Tube Gauge | 14g |
| Quantity | Sold as a pair. |
| Reducer Outlet Size | 2-1/2 in. |
| Reducers Included | Yes |
| Replacement Gasket | 27520 |
| Replacement Head Flange Gasket | 27520 |
| Street Legal | Yes |
| Tube Design | Standard |
| Tube Diameter | 1-5/8 in. |
| Tube Length | Mid-Length Tubes |
| Tube Material Thickness | 14g |
| Tube Size | 1-5/8 in. |
| Tube Style | Mid-Length |
| Tuned | No |
| Variations | 66601, 61608 |
| Weld-Up | No |
| With A.I.R. System | Yes |
| With EGR | No |
| Y-Pipe Included | No |
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).
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