On some years the trucks had a restricter on the intake, presumably to limit how hard they were driven. If you look at some of the horsepower curves you will see that the truck curves peak before the ones on the car engines. I have always thought that this was due to the heavier pistons in the truck engine.


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!