H2O Manifold 89011A8 for Mercruiser V8 Big Block T-20957

Manifold for GM Mercruiser Big Block 7.4-Liter (454 cu.in.) and 8.2-Liter (502 cu.in.)

Replaces Mercruiser 89011A8, 807078T08, 9-40506

Manifold with Centre Riser. For Big Block Log Style, see manifolds 47735 (port) and 47736 (starboard).

This is a non-OEM, aftermarket part by H2O Performance Parts H2O T-20957.

RELATED PARTS
RISER - 3" 98504A3
RISER - 4" H2O T-20976
SPACER KIT 3" 93320A13
SPACER KIT 6"  BARR MC-20-93322A3
GASKET (MANIFOLD) REC 27-46820
GASKET (RISER) OPEN - Use with riser kits 27-860232
GASKET (RISER) RESTRICTED - Standard cooling 27-860233