LS3 427ci: Bore 4.070" x stroke 4.125", CP lumpy top pistons 13.5:1 comp, Comp Star "H" beam con rods, Callies 4340 Steel crank.
CNC Ported LS3 Heads with lightweight valves, Pac racing double valve springs with Moly retainers, Roller rockers, chrome moly pushrods, custom Hyd roller camshaft 266@.050", tie bar lifters, hi-volume oil pump, MSD distributor, MSD coil and MSD box with Rev limiter, twin 930 Holly E85 Carbies, sheet metal tunnel ram, Canton race 7 litre sump, no computor required for this engine.
Power rating: 740hp@7400rpm.
Please be aware we do keep most of these engines in stock, however there can be upto a 10 day wait. Please email