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Standard Uncoated Headers; 1-1/2 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design
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.
| Air Conditioning | Yes |
|---|---|
| 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 | Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions |
| Country Of Origin | US |
| Crossover Pipe Included | No |
| Cylinder Head | Stock Profile Heads |
| Cylinder Head Port Shape | Round |
| E.O. # | Yes |
| Emissions Notes | EO# D167-33 (click here for covered vehicles in document on ARB.CA.GOV website) |
| Engine | Chevy SB 283-400 (Gen 1) 1958-86 |
| Engine Notes | CHEVROLET ENGINES Only! |
| Exhaust System Dia | 2-1/2 in. |
| Finish | Uncoated |
| Finish Type | UNCOATED Mild Steel! Shipped with Temporary Paint. |
| Flange Style | Standard |
| Flange Thickness | 0.3125 in. |
| Gasket Or Seal Included | Yes |
| Header Construction | MILD STEEL- Standard-Duty |
| Header Fasteners Included | Yes |
| Header Finish | Uncoated |
| Header Material | Mild Steel |
| Header Style | Long Tube |
| Installation Hardware Included | Yes |
| Installation Notes | May be necessary to remove Z bars (SS Series). Must modify rotary A/C bracket. |
| Key Feature | 50 State (No A.I.R.) |
| LS SWAP | NO |
| Manual Transmission - Column | No |
| Manual Transmission - Floor | Yes |
| Material | Mild Steel |
| Mounting Hardware Included | Yes |
| Package Contents | Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
| Port Shape | Round |
| Power Steering | Yes |
| Primary Tube Diameter (in) | 1.50 in. |
| Primary Tube Gauge | 16g |
| Quantity | Sold as a pair. |
| Reducer Outlet Size | 2-1/2 in. |
| Reducers Included | Yes |
| Replacement Gasket | 27500 |
| Street Legal | Yes |
| Tube Design | Standard |
| Tube Diameter | 1-1/2 in. |
| Tube Length | Long Tubes |
| Tube Material Thickness | 16g |
| Tube Size | 1-1/2 in. |
| Tube Style | Long Tubes |
| Tuned | No |
| Variations | 68317, 66317, 63317, 67318 & 67313. |
| Weld-Up | No |
| With A.I.R. System | No |
| 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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