I used napas #58-126 (1953-1955 235 chevy car 3/8" pulley) water pump coupled to predaves adapter plate in my 1951 suburban.I have a 1956 235 engine in it.I think there is about 3/8" to 1/2" clearance between the fan blade and the radiator.I can check if you need to know the exact measurement.

Can you post some pictures of your water pump ?

Thanks,Tim


1951 3100 Chevrolet
1951 Chevrolet Suburban Carryall
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