GMC's already have about as short of a shaft water pump as you could put on there. It is similar to the 216 style but not the same pump. It mounts high, between the block and head. The block is actually longer, so you have to move the radiator to be able to mount it and keep the harmonic balancer from rubbing on the radiator.
I'm going to put a 302 in my '50. It's sitting in my garage, I need to go over it. It runs but I want to hop it up, and I need to figure out the flywheel situation. It came out of a '55 dumper with a big old Clark 5 speed and a Brown/Lipe clutch. The bellhousing is too big.
