MarineTorq Marine Manifolds Stainless 5.7L Small Block Chev Mercruiser HT1 4" Centre classic MMercruiser GM Big Block heat

MMercruiser GM Big Block heat exchanger for engines with log style exhaust manifolds

These manifolds will fit Chevy 283

This system can be serviced in under 5 minutes and you’re on your way

NMMA and BIA requirements

Suit square bore carby and spread bore inlet manifold ie: Holley to Quadrajet

MarineTorq Marine Manifolds Stainless 5.7L Small Block Chev Mercruiser HT1 4" Centre classic MMercruiser GM Big Block heatMarineTorq Stainless Steel Manifolds are a lightweight, custom made, one piece construction for both petrol and diesel inboard boat engines. Their unique design eliminates leaks and increases boat performance. Every manifold and riser is manufactured using premium marine grade stainless steel and fabricated and hand welded by highly trained and experienced staff. Every MarineTorq manifold is made from the highest quality marine grade stainless steel.