We have several engines running with up to .210 offset pushrod cups on .904 lifters.some with 1100# plus open pressure,There have been no side loading issues at all .Also we have about 40 sets of Isky EZX bushing lifters in service and about 60 sets of Std Red Zones in service.WE did early pre release testing for Isky on the bushing lifters,This is the best product to come along in a long time,when a needle bearing fails it does hundreds of dollars of damage,The EZroll is the best Insurance you can buy for your engine.Bill C.


Ceralli Racing Engines & Checkered Flag Machine Racing engines , CNC porting & induction development http://www.checkeredflagmachine.net/