I know with the 216, for some years the truck engines had heavier pistons. At they same time they had slightly less horsepower. I would think that the extra weight of the pistons limited the horsepower.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!