Advance Adapters Outside Frame Rail Buick Conversion Headers

Jeep univ. Square Fender (CJ2A, CJ3B, MB, & M38) Buick V6 225 & 231

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 non-plated version, ready for your painting or custom 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. Thirty-four years of continual fine tuning and adjustments have made the Advance Adapters headers a choice for all engine conversion installations.

Special notes:

• 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.