OK, I had jugs that were 66.5mm (100 over). I bought a trinity stage IV head, and had the 19cc domes cut to accept the 66.5mm bore. Since I got new jugs, had them ported, and bored 40 over, i needed new domes. I found some from a guy on here, claimed they were uncut domes, so I assumed Id be getting the correct domes. When I got the domes, I read the stamp which reads 20cc and under that is says 66.5. Now does this 66.5 mean they are for a .100 over motor, or will the work with my .40 over motor. This is kinda drivin me crazy since I might of bought something I already had!!
Any advice is appreciated, thanks guys!!