Rebuild Kit Number: L430M63-65 from Egge Machine is $1743.48. I don't know what your engine builder charges for machining, but put it back together yourself and you will be without headaches of linkage, exhaust, oil pan clearance, and transmission adapters, etc. Rebuild a proven torque monster and be happier in the long run. This coming from a guy who does custom engine/trans installs for a living.