It probably had a standard water pump with the shaft shortened and a different pulley. Get a 55-57 pump, press the pulley collar down to match the pump that's on it, cut the excess off with a cut-off wheel. Or you can pay ridiculous money for one that the truck parts vendors have done that to.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.