Dyno test of budget friendly 5.3L LS engine that makes 416 hp on 87 octane gas We put together a budget 5.7L LS engine (327 cubic inches) to show that you don't have to go broke to enjoy the ...

If you know a few pieces of information, you can turn a Vortech 5.3L block into an LS mill making way over 500 hp and out-displacing an LS3! To prove it we dyno one at Westech Performance.