Infused Ceramic Aluminum manifold Fits 305 - 350 cu.in. GM small block V8 engines. Fits both sides of engine. Replaces Mercruiser #’s 87114 and 860246. Includes mounting kit with both manifold and riser gaskets as well as new mounting fasteners. This product is not only coated on the outside surface but on all inner surfaces including the water jacket..

NOTE: THESE ALUMINUM MANIFOLDS SHOULD ONLY BE USED WITH ALUMINUM SPACERS OR RISERS. DO NOT USE WITH CAST IRON OR STAINLESS STEEL COMPONENTS AS THIS WILL VOID ALL ASSOCIATED WARRANTY.