- For 1964-74 Impala 5.3L, 327 cid vehicles without A.I.R. systems, are considered as O.E.M. replacement parts when existing emission controls are not removed from vehicle.
- A/C equipped vehicles require bracket HED-20110 (large piston-type compressor).
 - Fits with angle plug heads (Chevy aluminum only).
- Elite replacement gasket HED-27520.

For the price, no other part can give you the horsepower and fuel economy improvements of Hedman headers. They make Hedman Street headers so well that they guarantee them to be free from defects--including cracks in the tubes and welds--for the life of the headers. Hedman Street headers are available in black painted or their polished HTC thermal ceramic coated finishes and, as an added bonus, they also come with all necessary gaskets and mounting hardware. Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer. This includes components like cylinder heads, chassis, steering, motor mounts, body mounts, and bushings, etc. If your vehicle is using aftermarket components, parts from other applications, or custom-altered parts, then it is the installer's responsibility to verify fitment.

Header Style:Full-length

Header Material:Steel

Header Finish:Silver ceramic coated

Weld-Up:No

Primary Tube Diameter (in):1 5/8 in.

Flange Style:Standard

Collector Attachment:Ball and socket flange

Collector Diameter:3.000 in.

Collector Reducers Included:Yes

Collector Reducer Exit Diameter:2.500 in.

Tuned:No

Primary Tube Gauge:18-gauge

Flange Thickness (in):1/4 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.