• HEDMAN Exhaust Header | Firebird - from LynXautoinnovate - Just $320.54!
  • HEDMAN Exhaust Header | Firebird - from LynXautoinnovate - Just $320.54!
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Hedman

HEDMAN Exhaust Header | Firebird

HEDMAN Exhaust Header | Firebird

$320.54
$320.54
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Hedman Standard Uncoated Long Headers for 64'-81' Pontiac Grand Prix, Le Mans, GTO, Firebird, Tempest & Grand Am 326-455

Upgrade your Firebird's performance with HEDMAN Exhaust Headers. Made in the USA since 1954, these headers offer smooth flow and precise fit thanks to CNC mandrel-bent tubes and hand-welded construction. The unique gasket less design allows for easy installation on various Pontiac models.

Part Type:
Headers
Product Line:
Hedman Street Headers
Header Style:
Long tube one-piece stepped
Header Material:
Steel
Primary Tube Outside Diameter (in.):
1 5/8 - 2 in.
Header Color:
Temporary non-high temperature paint
Flange Style:
Standard
Weld-Up:
No
Cylinder Head Port Shape:
Oval
Collector Attachment:
Ball and socket flange
Collector Diameter (in.):
3.00
Collector Reducers Included:
Yes
Collector Reducer Exit Diameter:
2.500 in.
Tuned:
No
Primary Tube Gauge:
16-gauge
Spark Plug Position:
Straight
Flange Thickness (in.):
0.31 in.
Bolts/Studs Included:
Yes
Gaskets Included:
Yes
Crossover Pipe Included:
No
Catalytic Converter(s) Included:
No
Motor Mounts Included:
No
Transmission Mount Included:
No
Quantity:
Sold as a pair.

Notes:
  • Modification to reverse lockout (back drive) mechanism may be required. Some heads may require drilling and tapping of end bolt holes. The paint applied to these headers is a temporary coating only and is designed to burn off during use. High temperature paint or other high temperature coatings are recommended.
  • 1975-1979 only, 50 state legal for these years only.
  • For vehicles 1964 through 1974 without A.I.R. systems, considered as O.E.M. replacement parts when existing emission controls are not removed from vehicle.
  • Not legal for sale or use in California on pollution controlled motor vehicles.


CARB EO Number(s):

Fitment: 

1979

 

1978

 

1977

 

1976

 

1975

 

Pontiac

 

Firebird

 

ALL

 
L
 

 Air Conditioning: Yes
Power Steering: Yes
Auto Transmission
Column: No
Auto Transmission
Floor: Yes
Manual Transmission
Column: No
Manual Transmission
Floor: No
Footnotes: (1) Without smog injection or injection heads.
Footnotes: (2) Three tube design.
Footnotes: (23) Some heads require drilling and tapping of end holes.
Footnotes: (236) Requires Trans-Dapt Performance Oil Filter Relocation Kit 1120
Footnotes: (6) Modification to stock exhaust required to retain catalytic converter.
Footnotes: (10) Not For Ram Air III or IV style heads.
E.O. Number: D167-27
Emissions Notes: 50 State Legal (street legal) Headers per vehicle listing on C.A.R.B. EO D-167-27
Bolts/Studs Included: Yes
Flange Thickness:0.25 in.
Gasket Or Seal Included: Yes
Header Style: Long Tube
Reducers 

 

1974

 

1973

 

1972

 

Pontiac

 

Firebird

 

ALL

 
L
 

1974

 

1973

 

1972

 

1971

 

1970

 

1969

 

1968

 

1967

 

Pontiac

 

Firebird

 

ALL

 
L
 

 

1974

 

1973

 

Pontiac

 

Grand Am

 

ALL

 
L
 

 

1974

 

1973

 

1972

 

Pontiac

 

Grand Prix

 

ALL

 
L
 

1967

 

1966

 

1965

 

1964

 

Pontiac

 

GTO

 

ALL

 
L
 

1967

 

1966

 

1965

 

1964

 

Pontiac

 

LeMans

 

ALL

 
L
 

 

Other Models:

  • 1970-74 Pontiac Grand Prix 326, 455
  • 1964-77 Pontiac GTO, Lemans, Tempest 326,389,455
  • 1967-81 Pontiac Firebird 326, 455
  • 1973-77 Pontiac Grand AM, Lemans 326, 455

 

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