The Scat kits are very good quality for street strip plus type builds. Under 500-525 Horsepower type build and their cast crank kits are a good value. Brian at IMM Engines has even checked their internally balanced kits and said they were fine for street/strip non 100% race duty.

I bought my 416 kit from Brian. Crank spec'd out fine and everything else. Good kings bearings, IIRC speed pro rings, etc.