Highlights Patriots cast iron manifolds for GM LS engines offer a widevariety of fitment applications maximizing engine bay clearance.The Patriot LS cast manifold also incorporates a sealing domeand ships with a pair of 304 series stainless steel reducers tohelp route your exhaust system with more adjustment optionsthan the competition. No more expensive GM gaskets needed toget you on the road. These manifolds fit many LS engine swaps in our Patriot Exhaust line. Durable 16-gauge tubing Comes complete with gaskets, header bolts and collector reducers. Fits many LS engine swap headers in our Patriot Exhaust line, and is a direct/validated fitment for 70-81 GM F-Bodies, 82-88 GM G-Bodies and 68-72 GM A-Bodies Raw Cast Finish Reviews There are no reviews yet. Be the first to review “1 5/8 Raw Cast Tubular Manifolds for LS1-LS9 Engine Swaps, 70-81 GM F-Bodies, 82-88 GM G-Bodies and 68-72 GM A-Bodies” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.