Engine Swaps for the 1981 Honda CM400C: Compatibility Guide and Options
The CM400C can accept CB400 and CB450 engines from the 1978-1986 family. Learn which engines bolt in, what modifications you’ll need, and realistic costs for used engine swaps.
The CM400C can accept CB400 and CB450 engines from the 1978-1986 family. Learn which engines bolt in, what modifications you’ll need, and realistic costs for used engine swaps.