Quote:
Originally Posted by 68c10owner
alot of vortecs cc out at 66cc`s, not the 64cc`s they are listed as.
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Good point. I cc'd several heads such as the 487, 993, 882, and others and found them to be closer to 78 cc compared to the listed 76 cc. These were virgin heads that have never been surfaced. Two cc's will make a .2 difference on a 355.
http://www.rbracing-rsr.com/compstaticcalc.html