I dont think the motor mounts are gonna be the problem..(Although if those are for a big block, they'll probably work fine) But the stock motormounts (w/o the spacers) will let ya lower it, but it's the backplate and pull starter that get in the way.. You need a new backplate that doesnt have the starter shaft hole in it, and then ya need to grind on the bottom/back of the engine/backplate, so it can sit down low enough on the chassis to let the starter box get to the flywheel..