235 passenger car engines used the narrow belt in 1954 (3/8"???) Truck balancers use the wide one. A 216 balancer will be a drop-in fit- - - -wide belt, small diameter for better fan clearance, etc. Drop me a private message- - - -we might be able to do some horsetrading. I have several wide groove balancers. I adapt 2-groove balancers for 250 six cylinders to a lot of the engines I build- - - -that requires some machining to make the pulley grooves
line up.

Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!