I recently picked up an NOS set of Arias Speedmasters made in the mid 70's. They utilize the std comp ht and the 1.094 pin. This set is unlike the others that I've had it the past as they have a shorter dome (rated@11:1?). The others I had years ago had a much taller dome but I don't recall their 'scr rating' with what head and deck. I can't tell you the true scr rating nor can I tell you the volumne these domes but they are short, maybe 8-9 CCs. They're out there, it just takes some digging and keeping your eyes opened.

BTW, just for reference, I have a set of TRW2315 pistons on-the-shelf, so I measured the ch which is 1.924" on this particular set. The 'official' NHRA compression height spec is 1.900".

As for your question Mike...if they're high quality, utilizing a 6.766 rod and .990 pin, with a 12-15cc dome, yup, I'm interested.