We put both engines on the dyno to see which made more horsepower and torque. It didn’t go as planned. Over the past year, we assembled two very mild small-blocks aimed at the typical hot-rodder ...

That stroke, combined with the maximum 4.165-inch bore, yields an astounding 501 cubic inches (8.2L). This makes for a ton of torque potential in a package about the size and weight of an older LS1.