2018 GM Marine 8.0L LFI

When it comes to pulling your car hauler or offshore racing boat, the heavy-duty 8.0L big-block does it without breaking a sweat. Its designed to accommodate gasoline, CNG, or LPG fuels, and because its a big-block, it delivers strong, low-rpm torque.

A tall-deck version of the latest block casting features full-length water jackets, thicker main bearing webs, and four-bolt main caps that make up the 8.0Ls foundation, a long 4.250 stroke helps maximize torque.