American Motors: AMC Harmonic Balancers, harmonic balancers, balance weights


Question
Hi Jim,
What is the disadvantage of using a harmonic balancer and flex plate from a 360 on a 401?

Answer
The balance weights are different, which would cause vibration to kill the 401. New or rebuilt balancers are available from Pioneer. I just got one for my AMC 6 cyl for $45, but the 401 is probably more. Try http://www.partsamerica.com for a replacement (I work in one of their stores)