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Vehicle Info NeededHEDMANPART NUMBER: 500-28150
Standard Duty Uncoated Full Length Headers for 1970-79 Pontiac Firebird 326-455
$36999
Ships on Sep 15, 2026
Lowest Price GuaranteePontiac Cars
- Standard Duty Uncoated Full Length Headers
- 1970-79 Pontiac Firebird 326-455
- Tube Size: 1-3/4"
- Collector Size: 3"
- Without smog injection or injection heads.
- Except round ports.
- Some heads require drilling and tapping of end holes.
- Includes parts necessary to retain emission devices. (50 State)
- Not legal for sale or use in California on pollution controlled motor vehicles.
- Modification to stock exhaust required to retain catalytic converter.
- 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.
- 1975-1979 only, 50 state legal for these years only.
- EO#D167-27
Part TypeHeader
BrandHEDMAN
Package Height8.5
Package Width16.0
Package Length38.75
Weight28.0 PG
Part CategoryPerformance Parts
Carb Eo NumberD-167-27 (pdf)
Header FinishPainted
Tube DirectionDown Swept
QuantitySold as a pair
Bolts/Studs IncludedYes
Cylinder Head Port ShapeD-port
Transmission Mount IncludedNo
Header MaterialSteel
Gaskets IncludedYes
Weld-UpNo
Collector AttachmentBall and socket flange
Flange StyleStandard
TunedNo
Collector Diameter3 in (76.2 mm)
Motor Mounts IncludedNo
Part FitmentSemi Universal
Reducers IncludedYes
ApplicationAutomotive
Primary Tube Gauge18-gauge
Header StyleFull-length
Cross Over Pipe IncludedNo
Catalytic Converter(S) IncludedNo
Primary Tube Diameter1.75 in (44.5 mm)
Vendor Part Number28150
Package Qty1
Package TypeEA
No Questions
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