Aluminum heads, stroker kits, camshafts, and intakes are among the bolt-on parts that will step up the Vortec 8100's game. With bolt-together kits available that send power as high as 685 ...

all of which were secured with a new 18-bolt head pattern. The engineers also decided to alter the firing order. Older GM big ...

Of concern to car crafters, the Vortec 8100 (also known by its RPO number L18) was never offered in Chevrolet passenger cars because its hefty cast-iron heads and block bring total engine weight ...

Early 2000's American trucks are awesome, and monstrous 8.1 liter V8 Vortec Chevy trucks are even more so. But when the time comes to change the heater core on one of these beasts, the bill can ...