Here are the best crate engines they make ... Forged aluminum Cylinder Heads: Aluminum oval port; 110-cc chambers Maximum Recommended RPM: 6,400 The L88 427 was the ultimate version of Chevy ...

However, its cast-aluminum pistons are a weak point inside the engine that limit it to 430 horsepower and 475 pound-feet of torque. The Roush 427 SRX crate engine, for comparison, also uses a cast ...