LS3 6.2L Turn Key Swap with Transmission

If you go for the base LS3, you get a cast-aluminum block with iron cylinder liners, six-bolt cross-bolted main caps, and the L92 heads. The cylinder liners are designed for the stock 3.600-inch stroke, but it is possible to go to 4.00 inches. With the maximum overbore of 0.030, the block has the potential for 421 inches using an aftermarket rotator assembly. The cam is a hydraulic roller with 204/211 degrees of duration at 0.050 with 0.551/0.522 lift. The heads have a 68cc chamber and with the hypereutectic aluminum pistons yield a 10.7:1 compression ratio, so the engine needs 92- octane pump gas. The intake and drive-by-wire throttle body are included, but you’ll need to buy the GM pedal assembly. GM offers an LS3 controller to run the system in everything from a street machine to a street rod.