Fits 68-72 GM a-body with d-port heads. Also fits 70 1/2 - 81 f-body. ***For those using cylinder without end bolt holes (i.e. #7K3, 7M5, etc) we have a fix that doesn't require brackets or addl machining on heads. There is a 40.00 shop fee for this mod to the factory headers. Request in "order comments" when you checkout)
Ideal for 2.5" or 3" exhaust system. Ports are CNC'd and interior of castings are detailed...ready to run.
Click on photo at right for comparison photo with others' castings.
Our castings are much higher quality than what you'd receive from the catalog suppliers such as YearOne, Perf Yrs, Classic, PartsPlace, etc... Photo shows casting from Performance Years in foreground...Our casting, in rear, has correct port detail, overall head flange config is crisp & correct and correct pn type and position. Casting from Catalog Suppliers has poor detail, they also cast with 2 pn.s and grind off extra one off depending on the application. Our castings are backed by Lifetime Guarantee on material and workmanship
Original casting numbers on manifolds. LH: 9777646 RH: 9777642.
Collector opening is 2.45" for cars with "large pipe" exhaust systems and/or intake/head mods. Use our SSP-6 or SHP-6 2.5"mandrel downpipes, SSP-30 3" dwnpipes or one of our Ultimate Exhaust Systems.
GET $25.00 OFF WHEN YOU ORDER OUR X-CROSSOVER EXHAUST SYSTEM WITH OUR FACTORY HEADERS!
OPTIONAL CERAMIC COATING:
Both castings are port-matched to Pontiac blueprint then thermal barrier ceramic coating is applied and cured on interior and exterior. Choice of Silver or Gray. 3-year Guarantee. Will not burn off, fade or peel. Reduces header temperature 40%! Silver is chrome-like. Gray looks stock
Requires 3 bolt flange on each side