Hedman Hedders Standard Uncoated Headers; 1-3/4 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design 68250
Specifications:
| Flange Style | Standard |
| Header Port Shape | Round |
| IMPORTANT! | Front Engine Mounts ONLY! |
| Manual Transmission - Column | No |
| Port Shape | Round |
| Crossover Pipe Included | No |
| Power Steering | Yes |
| Variations | 68256 |
| Cylinder Head Port Shape | Round |
| Header Finish | Uncoated |
| Header Material | Mild Steel |
| Mounting Hardware Included | Yes |
| Primary Tube Diameter (in) | 1.75 in. |
| Weld-Up | No |
| Collector Bolts Included | Yes |
| Catalytic Converter(s) Included | No |
| Tuned | No |
| Header Construction | MILD STEEL- Standard-Duty |
| Emissions Notes | Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only. |
| Gasket Or Seal Included | Yes |
| Reducer Outlet Size | 2-1/2 in. |
| Collector Attachment | 3 in. |
| Flange Thickness | 0.3125 in. |
| Exhaust System Dia | 2-1/2 in. |
| Material | Mild Steel |
| Collector Style | BALL and SOCKET Style (Gasketless) |
| California Proposition 65 | WARNING: Cancer. For more info visit www.P65Warnings.ca.gov |
| Tube Style | Long Tubes |
| Finish Type | UNCOATED Mild Steel! Shipped with Temporary Paint. |
| Tube Length | Long Tubes |
| Tube Diameter | 1-3/4 in. |
| Tube Size | 1-3/4 in. |
| Tube Design | Standard |
| Replacement Head Flange Gasket | 27530 |
| Finish | Uncoated |
| Quantity | Sold as a pair. |
| Replacement Gasket | 27530 |
| Installation Hardware Included | Yes |
| Header Fasteners Included | Yes |
| with A.I.R. System | No |
| with EGR | No |
| Y-Pipe Included | No |
| Primary Tube Gauge | 16g |
| Notes | 55-57 Chev. Pass. Car 396-502 |
| Tube Material Thickness | 16g |
| Collector Diameter | 3 in. |
| Title | HEDMAN HEDDERS STANDARD UNCOATED HEADERS; 1-3/4 IN. TUBE DIA.; 3 IN. COLL.; FULL LENGTH DESIGN |
| Contents | Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions |
| Package Contents | Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
| E.O. # | No |
| Cylinder Head | Stock Profile Heads |
| Bolts/Studs Included | Yes |
| Motor Mounts Included | No |
| Manual Transmission - Floor | Yes |
| Header Style | Long Tube |
| Reducers Included | Yes |
| Air Conditioning | Yes |
| Automatic Transmission - Column | No |
| Automatic Transmission - Floor | Yes |
| Collector Size | 3 in. |
| Description_SHO | HEADERS, UNCOATED |
| Description_INV | HEDMAN GM CAR HEADERS-UNCOATED |
| Description_DEF | Exhaust Header |
| Description_DES | 1-3/4 in. Long-Tube Headers For 55-57 Chevy Tri-5 396-502 |
| Description_ASM | 1956 Chevrolet Bel Air Base CID 396 Naturally Aspirated GAS, 1956 Chevrolet Bel Air Base CID 402 Naturally Aspirated GAS, 1956 Chevrolet Bel Air Base CID 454 Naturally Aspirated GAS, 1957 Chevrolet One-Fifty Series Base CID 396 Naturally Aspirated GAS, 1957 Chevrolet One-Fifty Series Base CID 402 Naturally Aspirated GAS, 1957 Chevrolet One-Fifty Series Base CID 454 Naturally Aspirated GAS, 1955-1957 Chevrolet Two-Ten Series Base CID 396 Naturally Aspirated GAS, 1955-1957 Chevrolet Two-Ten Series Base CID 402 Naturally Aspirated GAS, 1955-1957 Chevrolet Two-Ten Series Base CID 454 Naturally Aspirated GAS |
| Description_EXT | Standard Uncoated Headers; 1-3/4 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design |
| Description_FAB | Handcrafted, Mild Steel Construction. |
| Description_FAB | Long Tube Header Design Provides Excellent Top-End Horsepower and Torque. |
| Description_FAB | Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors |
| Description_FAB | Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters) |
| Description_FAB | Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating! |
| Description_FAB | Proud To Say, Made In The USA, Since 1954! |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1956 | Chevrolet | Bel Air | Base | Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (3) Front motor mounts only.; Emissions Notes: 1955-57 VEHICLES- These vehicles have no factory emissions systems. These headers are 50 state legal for use on this vehicle as long as any existing emissions controls are not removed from vehicle.; Engine Family: BB Chevy 396-502 (MARK IV / GEN V) |
| 1957 | Chevrolet | One-Fifty Series | Base | Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (3) Front motor mounts only.; Emissions Notes: 1955-57 VEHICLES- These vehicles have no factory emissions systems. These headers are 50 state legal for use on this vehicle as long as any existing emissions controls are not removed from vehicle.; Engine Family: BB Chevy 396-502 (MARK IV / GEN V) |
| 1955 | Chevrolet | Two-Ten Series | Base | Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (3) Front motor mounts only.; Emissions Notes: 1955-57 VEHICLES- These vehicles have no factory emissions systems. These headers are 50 state legal for use on this vehicle as long as any existing emissions controls are not removed from vehicle.; Engine Family: BB Chevy 396-502 (MARK IV / GEN V),Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (3) Front motor mounts only.; Emissions Notes: 1955-57 VEHICLES- These vehicles have no factory emissions systems. These headers are 50 state legal for use on this vehicle as long as any existing emissions controls are not removed from vehicle.; Engine Family: BB Chevy 396-502 (MARK IV / GEN V),Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (3) Front motor mounts only.; Emissions Notes: 1955-57 VEHICLES- These vehicles have no factory emissions systems. These headers are 50 state legal for use on this vehicle as long as any existing emissions controls are not removed from vehicle.; Engine Family: BB Chevy 396-502 (MARK IV / GEN V) |
| 1956 | Chevrolet | Two-Ten Series | Base | Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (3) Front motor mounts only.; Emissions Notes: 1955-57 VEHICLES- These vehicles have no factory emissions systems. These headers are 50 state legal for use on this vehicle as long as any existing emissions controls are not removed from vehicle.; Engine Family: BB Chevy 396-502 (MARK IV / GEN V),Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (3) Front motor mounts only.; Emissions Notes: 1955-57 VEHICLES- These vehicles have no factory emissions systems. These headers are 50 state legal for use on this vehicle as long as any existing emissions controls are not removed from vehicle.; Engine Family: BB Chevy 396-502 (MARK IV / GEN V),Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (3) Front motor mounts only.; Emissions Notes: 1955-57 VEHICLES- These vehicles have no factory emissions systems. These headers are 50 state legal for use on this vehicle as long as any existing emissions controls are not removed from vehicle.; Engine Family: BB Chevy 396-502 (MARK IV / GEN V) |
| 1957 | Chevrolet | Two-Ten Series | Base | Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (3) Front motor mounts only.; Emissions Notes: 1955-57 VEHICLES- These vehicles have no factory emissions systems. These headers are 50 state legal for use on this vehicle as long as any existing emissions controls are not removed from vehicle.; Engine Family: BB Chevy 396-502 (MARK IV / GEN V),Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (3) Front motor mounts only.; Emissions Notes: 1955-57 VEHICLES- These vehicles have no factory emissions systems. These headers are 50 state legal for use on this vehicle as long as any existing emissions controls are not removed from vehicle.; Engine Family: BB Chevy 396-502 (MARK IV / GEN V),Air Conditioning: Yes; Power Steering: Yes; Auto Transmission - Column: No; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (3) Front motor mounts only.; Emissions Notes: 1955-57 VEHICLES- These vehicles have no factory emissions systems. These headers are 50 state legal for use on this vehicle as long as any existing emissions controls are not removed from vehicle.; Engine Family: BB Chevy 396-502 (MARK IV / GEN V) |