JakeP 53 Posted September 30, 2015 Report Share Posted September 30, 2015 Im rebuilding an engine for a turbo build and was looking into oversized valves, theres a set of incolnel exhaust valves with an oversize of 1.8mm , is that too big or is that okay, new to this stuff so not really sure Link to post Share on other sites
RBPE 198 Posted October 5, 2015 Report Share Posted October 5, 2015 Depends what you're going for really, air spped velocity is important for road manners, volume for max power - this should teach you about the levels of a stock head though; martingraham 1 Link to post Share on other sites
JakeP 53 Posted October 5, 2015 Author Report Share Posted October 5, 2015 Just after a little bit more air flow thats all, Ive been looking at some posts etc and someone said that if you have more than 2mm altogether when having oversized valves the seats can clash so Im not sure really what I should do Link to post Share on other sites
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