Pontiac 400/455 D-Port Stainless Header Flange--- MIS CUT- FIRESALE SPECIAL

Precision laser cut form 3/8" thick 304 Stainless Steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for stock V8 Pontiac heads, 326-455 CID.

Port Size: 1.752"

These flanges DO NOT match our standard Pontiac 350/389/400/428/455 D-Port Configuration. There was an error during the laser cutting which caused the ports to come out squared rather than oval.

We do NOT have pre formed stubs available for these, but call one of our sales reps and we may be able to help.

These are FINAL SALE only items, we will not accept returns or refunds on these parts.

Flanges sold separately.