When dealing with boost, a stronger block is always a good plan, so this build started with a Donovan aluminum HC 400 block. Best of all this priority-main block tips the scales at a scant 100 pounds!

We love sexy, big-power engines as much as anyone, but many of us need to work with real-world budgets that preclude 1,000-hp mills. Still, if you shop right and realize how much fun 500-plus hp can ...