Roller cam in non-roller block

[Jerry Clayton]

Simon

I will have my son Corey look into the specific part numbers for answers----However, why not just get a later block that is set up for the rollers???? A big part of our machine work is on these later blocks( both ford and GM) and/or the Dart SHP blocks that have 4.125 bore

Jerry

[CobraV8]

Excaliber, I'm aware of the solid lifter-only 427s, but all small blocks displacing 289 and above do have the oil passages for hydraulic lifters afaik. Also the only blocks with longer lifter bores are 5.0 roller blocks to my knowledge.
You're right it says the lifters can be used with 1960s blocks in the Summit link, however I don't know for sure if a smaller base circle cam has to be used. And I'd rather not find out the hard way