Zo6's C5R & D1S Procharger. This engine (actually 428 cubic inches) was built by the well know NASCAR engine builder Charlie Hempfield ('96 Daytona winner, various polesitters for many years). Mostly Crowler rotating parts, roller rockers, etc., etc. D1SC is small as you see but was a challenge to fit (that is a double row radiator in front of it. Intercoolers are under headlamps.