365ci alloy block,Ls3 crank, k1 forged rods, cp forged pistons, ls7 lifters, ls3 heads, rocker bush kit on rockers, pac dual valve springs, chromoly pushrods, custom cam (about .620 lift), edelbrock single plane hi rise manifold, Holley ultra xp 750 double pumper, has done about 4300kms total. Made 608hp and over 480ft/lb torque on pump 98. Fully machined and assembled by BG Engines. Engine comes complete sump to carb, including ice pro Ls coils and leads and msd ignition setup and custom built