Does anyone know if there is a difference in Y Block intakes. I understand Pre-57 have smaller ports on the heads and later ones have big ports. Do the later intakes work on all y blocks or early intakes work on later engines. Clearly the ports may not match but an early intake might be able to be port matched to the larger ports. I have a buddy searching for a tripower intake for a 312 in his 56 F100. Posted using the Full Custom H.A.M.B. App!