Engine Performance & Vehicle Customizing Products From Hedman

STREET/STRIP Headers; 70-81 FIREBIRD 400-455; 1-3/4 in.x1-7/8 in. Stepped

STREET and STRIP Race Headers; 70-81 FIREBIRD 400-455; 1-3/4 in. -1-7/8 in. Stepped Tubes; 3-1/2 in. Collector

Part#35146

$761.07

Product Specifications

(PLEASE REVIEW THE FOLLOWING PRODUCT SPECIFICATIONS & FOOTNOTES THOROUGHLY)

Tube Diameter 1-3/4 in. x 1-7/8 in.
Tube Style Long Tube
Air Conditioning No
Automatic Transmission - Column No
Automatic Transmission - Floor Yes
Manual Transmission - Column No
Manual Transmission - Floor No
Collector Attachment 3-1/2 in.
Collector Size 3-1/2 in.
Reducer Outlet Size 2-1/2 in.
Contents Pair of Headers, Gaskets & Mounting Hardware
E.O. # No
Emissions Notes RACING HEDDER! Not legal for use on pollution controlled vehicles.
Engine Pontiac 400-455
Exhaust Exit Under Chassis Exit
Finish Raw
Finish Type Uncoated Mild steel
Flange Style Standard
Flange Thickness 0.375 in.
Header Port Shape Standard Port
Header Style Long Tube- Stepped
Notes 70-81 Firebird 400-455
Key Feature Standard Port
Power Steering No
Product Info 70-81 PONTIAC FIREBIRD- 13/4 in., 17/8 in., 31/2 in. - HUSLER STEPPED TUBE RACE HEDDERS
Installation Notes Flange may need to be cut between ports to install hedders. Do not cut between twin ports.
Material Mild Steel
Tube Design Stepped Long Tube Race Headers
Tube Length Long Tubes
Tube Material Thickness 18g
Tube Size 1-3/4 in. x 1-7/8 in.
with A.I.R. System No
with EGR No
Weld-Up No
Tuned Yes
Bolts/Studs Included Yes
Catalytic Converter(s) Included No
Crossover Pipe Included No
Gasket Or Seal Included Yes
Motor Mounts (Included) No
Reducers Included Yes
Transmission Mount/Crossmember (Included) No
Y-Pipe Included No
Quantity Sold as a set.
Primary Tube Gauge 18g
Primary Tube Diameter (in) 1.75 in. x 1.875 in.
Package Contents Set of Headers, mounting hardware and gaskets
Header Material Mild Steel
Header Finish Raw
Cylinder Head Port Shape D-port
Cylinder Head Standard
Replacement Gasket 18073
Replacement Head Flange Gasket 18073
California Proposition 65 WARNING: Cancer. For more info visit www.P65Warnings.ca.gov

Vehicle Applications

Pontiac

Firebird

Year

C.I.D.

Liter

Cylinders

Drive Type

1970

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1970

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1970

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1971

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1971

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1971

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1972

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1972

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1972

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1973

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1973

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1973

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1974

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1974

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1974

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1975

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1975

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1975

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1976

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1976

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1976

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1977

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1977

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1977

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1978

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1978

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1978

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1979

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1979

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1979

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1980

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1980

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1980

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1981

400

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1981

403

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No

1981

455

Vehicle Specific Information
Air Conditioning	No
Power Steering	No
Auto Transmission - Column	No
Auto Transmission - Floor	Yes
Manual Transmission - Column	No
Manual Transmission - Floor	No