Our header flanges are 3/8"" thick and all of our primary tubes are constructed with 16 gauge tubing with a 2-1/2" 3 bolt collector ring. Each design is available in a black paint coating. Our written guarantee states that if the headers do not fit your engine conversion exactly as you see fit, then simply return them for a full refund. You will only be responsible for the freight charges. We do not warranty the use of aftermarket header wrap products will void the header warranty. Years of continual fine tuning and adjustments have made the Advance Adapters headers a choice for all engine conversion installations. BUICK V6 HEADERS: The Buick headers we offer come with header flange gaskets and the header bolts, and collector rings & gaskets are sold separately,P/N 717200.
- Fenderwell header. Some minor modifications to the fenderwell are required
- These headers are not legal for use on pollution-controlled vehicles
- Note: Our exhaust headers are designs for use with Advance Adapters branded engine mounts. If you are using another company's engine mount kit or if you have fabricated your own, Advance Adapters cannot guarantee the compatibility or fitment of our headers with said mounts.
Buick 231 CID 3.8L V6
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