Being a big block engine, just about any flywheel for a 1/8th scale monster truck or buggy should work fine. Big block engines typically have a bigger crankshaft than small block engines so the flywheels sometimes won't fit when going from a small block to a big block. One other thing to note - the big block engines (.21 and larger) have a different bolt pattern and block size so a small block mount typically won't work.