We have a untouched 48, no valve job, factory machining, other than bead blasting, no post factory surfacing.. It cc’d at 72 cc. I believe I had it on the flow bench years ago. It is a nice head, if someone needs a 48 we don’t have plans to use it.
I would have thought if there was a small cc 48 it would have had some sort of factory identifier to keep it separate from the other 48s.
I noticed the other day Butler still list 62 heads only going on 68-69 a/c cars. I have never seen a 62 on a 68 car. Maybe it exist somewhere. Lol And they list 16s only on 68 manual cars? My sets of 16s I have had came off of 68 t400 cars. A lot of info out there, and of course the internet is never wrong.
