All the details were taken care of with the 54' core motor but it had internal problems. Exchanged that for a 55' 235 that runs quiet and sweet. This engine uses the high water pump adapter plate that is neccessary with the # 838277 Chevrolet fan in placing the fan nicely in the lower center of the radiator.
Cools very well in the 108 degree desert traffic with the stock radiator. The fan runs faster than the crank and has the ability to kill flies at 24".
The car runs and drives very well for a 34' with this many changes.