Cummins 10: A Spotless 1979 Chevy C10 with a 12 Valve

When you see a classic GM truck, you assume it has either the original carbureted engine or maybe even a LS or LT swap in it. Definitely NOT a 12 valve Cummins.When you see a classic GM truck, you assume it has either the original carbureted engine or maybe even a LS or LT swap in it. Definitely NOT a 12 valve Cummins.