Installing a 410 pumpkin from a 67 to 72 GM truck and using tires as tall as the originals will yield about 2460 RPM at 60 mph. It took me three years to find one of the pumpkins. Now I have a 457 sitting around that I picked up just in case I couldn't find a 410.


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!