Hedman 65003 Small Block Chevy 283-400 Cu. In. Long Tube Street Headers

Installation Kit Included

Hedman - Made in the USA


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Hedman 65003
Exhaust Headers

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.


1967-1969 Camaro
1968-1968 Chevy II
1969-1974 Nova


Tube Diameter 1-3/4 in.
Tube Style Long Tubes
Collector Style BALL and SOCKET Style (Gasketless)
Air Conditioning Yes
Automatic Transmission - Column Yes
Automatic Transmission - Floor Yes
Manual Transmission - Column Yes
Manual Transmission - Floor Yes
Collector Attachment 3 in.
Collector Diameter 3 in.
Collector Size 3 in.
Reducer Outlet Size 2-1/2 in.
Exhaust System Diameter 2-1/2 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.
Engine Chevy SB 283-400 (Gen 1) 1958-86
Finish Uncoated
Finish Type UNCOATED Mild Steel! Shipped with Temporary Paint.
Flange Style Standard
Flange Thickness 0.3125 in.
Header Port Shape Rectangle
Header Style Long Tube
Notes 67-69 Camaro, 68-74 Nova 283-400
Port Shape Rectangle
Power Steering Yes
Product Info 67-69 CHEVROLET CAMARO- 13/4 in., 3 in. - STANDARD TUBE
Material Mild Steel
Tube Design Standard
Tube Length Long Tubes
Tube Material Thickness 16g
Tube Size 1-3/4 in.
Variations 66003
With A.I.R. System No
With EGR No
Weld-Up No
Tuned Yes
Bolts/Studs Included Yes
Catalytic Converter(s) Included No
Collector Bolts Included Yes
Crossover Pipe Included No
Gasket or Seal Included Yes
Header Fasteners Including 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 1.75 in.
Package Contents Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
Header Material Mild Steel
Header Finish Uncoated
Cylinder Head Port Shape Rectangle
Cylinder Head Stock Profile Heads
Header Construction MILD STEEL- Standard-Duty
Replacement Gasket 27560
Replacement Head Flange Gasket 27560


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