Mercruiser 454 502 V8 Stainless steel one piece high performance exhaust manifolds


Stainless steel one piece high performance exhaust manifold set to replace 454 and 502 Big block Mercruiser cast iron original. there are many variations over the years in manifold and riser configuration with 4′” centre riser and and spacers between the manifold and riser.  Bracket may vary depending on year and whether inboard or sterndrive.

The stainless manifolds kits are all one price and are built to exactly replace the original including any brackets for oil filters, electrics etc. The riser configuration as also specific to sterndrive or shaft drive applications. For this reason we need to collect data from you when ordering.

Each kit is supplied with gaskets, bolts, 2 sacrificial replaceable anodes and fitting tool.