LS3's can make great power with the stock heads, but Trick Flow engineers combined the best features of GM's LS3 and LS7 cylinder heads with its own race-winning engineering and technology to create ...

Back in part one of our new GMPP LS3 testing ("Late Crate Update," Oct. '10), we subjected a factory-fresh LS3 crate motor from GM Performance parts to a series of performance upgrades, including a ...

It has been dubbed by many as a mini-LS7, and for good reason. Bone stock, our '09 C6 tester made a whopping 406 rwhp on Redline Motorsports' Dyno Dynamics rollers. With a big cam, Kooks 1 7/8-inch ...