mpd579 Posted May 9, 2012 Report Posted May 9, 2012 bought a used head yesterday the domes that were in it are marked "22" "4" I'll assume that they are 22cc but what is the "4" I get a set from FAST 19cc for a 4mil and they are marked "19" "+2" So the 1st number is the cc. whats the 2nd? Quote
Fastassbanshee96 Posted May 9, 2012 Report Posted May 9, 2012 I believe it's the angle they are cut on. Quote
Larry's Shee Posted May 10, 2012 Report Posted May 10, 2012 Dome angle is larger than 4*. Just difference in method of marking. One is marked for 4mil stroker, other is marked fo 2mm cut to dome. All the same thing. Quote
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