That piston pin explanation makes a lot of sense. Just out of curiosity, is that documented anywhere in Chrysler manuals or is that just from personal experience of working on these small blocks?
I was working up a new crank/rod/piston combo last week and did a lot of digging on the internet. Had to run down the pin info on 2 or 3 different sites to get all the numbers.
Seems like the 318 went to a heavier rod in '73 or thereabouts but don't quote me on that; I'll be looking at that again so may be able to report back later.
BTW, I like the lettering on your car in the pix; that was classic for the day!
