Engine Performance & Vehicle Customizing Products From Hedman

STREET/STRIP Headers; 70-81 FIREBIRD 400-455; 1-3/4"x1-7/8" Stepped; 3-1/2" Coll

STREET and STRIP Hedders; 70-81 FIREBIRD 400-455; 1-3/4" -1-7/8" Stepped Tubes; 3-1/2" Collector

Part#35146

$761.07

Product Specifications

(PLEASE REVIEW THE FOLLOWING PRODUCT SPECIFICATIONS & FOOTNOTES THOROUGHLY)

Air Conditioning No
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 3-1/2"
Collector Size 3-1/2"
Contents Pair of Headers, Gaskets & Mounting Hardware
Crossover Pipe Included No
Cylinder Head Standard
Cylinder Head Port Shape D-port
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
Flange Style Standard
Flange Thickness 0.375"
Gasket # 18073
Gasket Or Seal Included Yes
Head Flange Gasket 18073
Header Finish Raw
Header Material Mild Steel
Header Port Shape Standard Port
Header Style Long Tube- Stepped
Installation Notes Flange may need to be cut between ports to install hedders. Do not cut between twin ports.
Key Feature Standard Port
Manual Transmission - Column No
Manual Transmission - Floor No
Material Mild Steel
Motor Mounts (Included) No
Notes 70-81 Firebird 400-455
Package Contents Pair of Headers, Gaskets & Mounting Hardware
Power Steering No
Primary Tube Diameter (in) 1.75" x 1.875"
Primary Tube Gauge 18g
Product Info 70-81 PONTIAC FIREBIRD- 13/4", 17/8", 31/2" - HUSLER STEPPED TUBE RACE HEDDERS
Quantity Sold as a set.
Reducer Outlet Size 2-1/2"
Reducers Included Yes
Transmission Mount/Crossmember (Included) No
Tube Design Stepped Long Tube Race Headers
Tube Diameter 1-3/4" x 1-7/8"
Tube Length Long Tubes
Tube Material Thickness 18g
Tube Size 1-3/4" x 1-7/8"
Tube Style Long Tube
Tuned Yes
Weld-Up No
with A.I.R. System No
with EGR No
Y-Pipe Included No

Vehicle Applications

Pontiac

Firebird

Year

C.I.D.

Liter

Cylinders

Drive Type

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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