Oil Pan Gasket OMC→GM 454 7.4L Big Block V8

Part # & Price	Description
VICOS30931X $18.95	Gasket Oil Pan Set Marine GM Big Block 454 7.4 502 8.2 Liter V8 Gen 4 Oil Pan Set for GM 427/454/502 CID Big Block V8 Gen 4. A Generation 4 Engine can be identified by having a fuel pump mounted directly to the engine block.
VICOS32121 $31.95	Gasket Oil Pan Set Marine for GM Big Block V8 454 502 Gen. 5 and 6 Oil Pan Gasket for GM 454 CID/7.4L AND 502 CID/8.2L Gen V and Gen VI engines. These engines have a 1 piece rear main seal and no fuel pump boss on the engine block.