Does anyone know if the late model (MKVI) big block hydraulic rollers fit a small block? I have several new sets of these lifters with some associated hardware (spider, alignment links, push rods,etc)if anyone is interested.
Bruce

oops sorry wrong topic.

I don't think the roller lifters interchange from SB to BB. I think the "canted valve" design is what doesn't allow for interchange on the rollers. But I could be wrong.

For sure the retro-fit rollers don't interchange, I know that much.