Forged 370 ls1(6.0 bored 30 over), 10.1 to 1 compression, summit pro ls rods and pistons, summit 8717 camshaft, Arp hardware throughout. Holley terminator x max engine management, aeromltive pro series fuel pump, will have 210 cc injectors. Twin t4 6973 turbos. Built th400 with a trans brake.