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Product Discontinued
HEDMANPART NUMBER: 500-66307
Standard Duty HTC Coated Full-Length Headers 1963-79 Chevy Corvette 283-400
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
GM Cars
- Standard Duty HTC Coated Full-Length Headers
- 1963-79 Chevy Corvette 283-400
- 1-5/8" Tube, 3" Collector
- Without smog injection or injection heads
- Will not fit steering damper inside front crossmember
- Will fit angle plug heads (Chevy aluminum only)
- Includes parts necessary to retain emission devices (50-state legal for 1975-80 only)
- Not legal for sale or use in California on pollution-controlled vehicles
- Modification to stock exhaust required to retain catalytic converter
- For 1964-74 vehicles without A.I.R. system (considered OE replacement when existing emission controls are not removed from vehicle)
Part TypeHeader
BrandHEDMAN
Package Height10.0
Package Width19.0
Package Length40.0
Weight18.0 PG
Part CategoryPerformance Parts
Carb Eo NumberD-167-26 (pdf)
Header FinishSilver ceramic coated
Tube DirectionDown Swept
QuantitySold as a pair
Bolts/Studs IncludedYes
Transmission Mount IncludedNo
Header MaterialSteel
Gaskets IncludedYes
Weld-UpNo
Collector Attachment3-bolt 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 Diameter1.625 in (41.3 mm)
Vendor Part Number66307
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
