Posted by Kaegi [76.22.23.236] on Sunday, November 23, 2014 at 12:11:30 :
In Reply to: Re: Exhaust Valve Inserts posted by gmharris [72.219.148.98] on Friday, November 21, 2014 at 15:48:58 :
mopar had aluminum pistons way back in the 30s. I think they were the first major manufacturer to have them. I have rebuilt a few Pontiac straight 8s from the 50s and they still had cast iron, tin plated pistons.