What determines whether you need OS or STD rings? Is this based solely on cyl diameter? thanks
L lprete · Registered Joined May 17, 2010 · 9 Posts Discussion Starter • #1 • May 23, 2010 What determines whether you need OS or STD rings? Is this based solely on cyl diameter? thanks
M Munkey990 · Registered Joined Oct 25, 2009 · 79 Posts #3 • May 24, 2010 OS requires the cylinder to be bored and OS pistons installed.
