The clutch shield in the post from Mike B. is as big as the bell housing. Just a flat bit of sheet metal, about 1/8 inch thick. That will make a difference if it is in place. And it might be the problem if it is not. It only matters if you are using the truck style bell housing. The later car type has the starter bolted to the block. Others may be more familiar with the V-8 I hope some add their thoughts.
