Hedman 65103 Big Block Chevy 396-502 CID (Without A.I.R.) Mid-Length Street Headers

Installation Kit Included

Hedman - Made in the USA


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1 in stock

Hedman 65103
Street Headers

Mid-Length Tube Type

NOTE: 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.


Big Block Chevrolet 396-502 CID (Without A.I.R.)
Various Cars 1965-1981

1965 - 1974 Bel Air
1965 - 1972 Biscayne
1970 - 1981 Camaro
1966 - 1974 Caprice
1968 - 1973 Chevelle
1968 - 1977 El Camino
1965 - 1974 Impala
1973 - 1974 Laguna
1973 - 1977 Malibu

Click here for full vehicle specifications


Tube Diameter 2 in.
Tube Style Mid-Length
Collector Style 3-Bolt Gasket Style Flange
Air Conditioning Yes
Automatic Transmission - Column No
Automatic Transmission - Floor Yes
Manual Transmission - Column No
Manual Transmission - Floor Yes
Collector attachment 3 in.
Collector diameter 3 in.
Collector size 3 in.
Reducer outlet size 3 in.
Exhaust system diameter 3 in.
Contents Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions
E.O. # No
Emissions notes Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only.
Finish Uncoated
Finish type UNCOATED Mild Steel! Shipped with Temporary Paint.
Flange style Standard
Flange thickness 0.375 in.
Header port shape Square
Header style Mid-Length Tube
Notes 68-74 Various Chevy Car 396-502
Key features Without A.I.R.
Port shape Square
Power steering Yes
Material Mild Steel
Tube design Standard
Tube length Mid-Length Tubes
Tube material thickness 16g
Tube size 2 in.
Variations 66103
With A.I.R system No
With EGR No
Weld-up No
Tuned No
Bolts/studs included Yes
Catalytic converters included No
Collector bolts included Yes
Crossover pipe included No
Gasket or seal included Yes
Header fasteners included Yes
Installation hardware included Yes
Motor mounts included No
Mounting hardware included Yes
Reducers included Yes
Y-Pipe included No
Quantity Sold as a pair.
Primary tube gauge 16g
Primary tube diameter 2 in.
Package contents Headers, reducers (exhaust adapters), gaskets, mounting hardware
Header material Mild Steel
Header finish Uncoated
Cylinder head port shape Square
Cylinder head Stock Profile Heads
Header construction MILD STEEL- Standard-Duty
Replacement gasket 27550
Replacement head flange gasket 27550


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