Standard Uncoated Headers; 1-3/4 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design
Specifications:
| Description_ASM |
1970-1977 Pontiac Firebird CID 350, 1970-1971 Pontiac Firebird CID 400, 1975-1979 Pontiac Firebird CID 400, 1971 Pontiac Firebird CID 455, 1975-1976 Pontiac Firebird CID 455, 1977 Pontiac Firebird Base CID 350 Naturally Aspirated GAS |
| Description_DEF |
Exhaust Header |
| Description_DES |
Standard Uncoated Headers; 1-3/4 in. Tube Dia; FULL LENGTH Design |
| Description_INV |
HEDMAN PONTIAC CAR HEADERS- UNCOATED |
| 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! |
| Description_SHO |
HEADERS, UNCOATED |
| Air Conditioning |
Yes |
| Automatic Transmission - Column |
No |
| Automatic Transmission - Floor |
Yes |
| Bolts/Studs Included |
Yes |
| California Proposition 65 |
WARNING: Cancer. For more info visit www.P65Warnings.ca.gov |
| Catalytic Converter(s) Included |
No |
| Collector Attachment |
3 in. |
| 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 |
| Crossover Pipe Included |
No |
| Cylinder Head |
Stock Profile 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) |
| Exhaust System Dia |
2-1/2 in. |
| Finish |
Uncoated |
| Finish Type |
Uncoated Mild steel |
| 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 |
| Manual Transmission - Column |
Yes |
| Manual Transmission - Floor |
Yes |
| Material |
Mild Steel |
| Motor Mounts Included |
No |
| Mounting Hardware Included |
Yes |
| Notes |
70-81 Trans-Am 326-455 |
| Package Contents |
Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
| Power Steering |
Yes |
| Primary Tube Diameter (in) |
1.75 in. |
| Primary Tube Gauge |
16g |
| Quantity |
Sold as a pair. |
| Reducer Outlet Size |
2-1/2 in. |
| Reducers Included |
Yes |
| Replacement Gasket |
27600 |
| Replacement Head Flange Gasket |
27600 |
| Title |
HEDMAN HEDDERS STANDARD UNCOATED HEADERS; 1-3/4 IN. TUBE DIA.; 3 IN. COLL.; FULL LENGTH DESIGN |
| Tube Design |
Standard |
| Tube Diameter |
1-3/4 in. |
| Tube Length |
Long Tubes |
| Tube Material Thickness |
16g |
| Tube Size |
1-3/4 in. |
| Tube Style |
Long Tubes |
| Tuned |
No |
| Variations |
28156 |
| Weld-Up |
No |
| with A.I.R. System |
No |
| with EGR |
No |
| Y-Pipe Included |
No |
| Length |
8.0000 |
| Width |
17.0000 |
| Height |
39.0000 |
| Weight |
30.0000 |
