H hemidup · Giddyup! Joined Nov 26, 2006 · 2,429 Posts Jan 13, 2013 Report BTW, The Manley spring # I gave you is the same spring used on the majority of the DP engines that spin to 8500 rpm. Some use the PAC 1409 with both having the highest rated spring rate of all the other brands.
BTW, The Manley spring # I gave you is the same spring used on the majority of the DP engines that spin to 8500 rpm. Some use the PAC 1409 with both having the highest rated spring rate of all the other brands.