With the introduction of the '07 GMT900 trucks, you can get a 2500HD or 3500HD with an all-new body and interior wrapped around a cleaner and more powerful version of the famous Duramax diesel or a ...

There is another way to get near 500 hp out of the LS platform using the lesser-known Chevy LY6. It's slightly smaller than the LS3 with a 4.00-inch bore and 3.62-inch stroke and has a lower 9.6:1 ...