Highest flowing sbm heads?

RammerJammer75 said
What about W5s? I can't remember what that flow and I know that they had some issues, but I think they are capable of good power from a stock block.

If you get a good set, numbers have appeared in the 330 area. Mine went 312 on a 4.125 bore. The head gage up the ghost and needed epoxy.

Mean416 said
I don't have an immediate goal perse. I do have a very nicely setup bottom end with a project that is stalled for awhile.

At this point just curious if there's any big flow heads out there that will work with a sbm, non race block. Doesn't look that way. This isn't a debate about what I should or shouldn't do, it's really just me wanting to learn more and see what options are out there.

More than 300 cfm is big flow? OK, then in the right hands, any aluminum head and the W2 are capable.

gzig5 said
I would think a set of Indy 360-1 or 360-2 should take care of anything a stock block can handle?

I agree.