Race Cast Engineering builds these V-12 heads in-house. As the name suggests, the V-12 LS is a 12-cylinder engine that shares its basic design with Chevy’s iconic small-block.

Building a performance engine isn’t difficult, and it doesn’t have to be expansive, but it does take knowledge and planning.

The block was also made extra transparent with a coat of additional resin applied by hand, to cover the rough surface that had transferred from the original engine block casting.

A cracked engine block can be a disastrous problem that renders your car completely useless, but one Cummins block in particular was prone to cracking.