Can any one tell me what change occured to pistons in 53 that prevented their use in 48-52 motors? All my factory parts books read this way, A -48 part for 48-52 and a-53 part for 53-up. Yet all the aftermarket catologs read one piston 48-74? Also , and of real interest since I am doing an EL, all aftermarket pistons for 61 inch motrs are listed as 36-52, I didn't think pans and knucks ran the same pistons, do they? As always any help is appreciated.
Brian
Brian
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