Back in the day you had to bush or tube the lifter bores to prevent oil escaping and dropping your oil pressure. And you hear stories of solid rollers not surviving on the street. Well if you dont oil the rollers and block off any oil to the lifter all together, how is it going to survive? Race engines are totally different than street engines. Race engines are at high rpm all the time, oil is flying all over the place. Street engines spend 95% of the time at 3000rpm or less and oil is not flying around to lube things like lifters with all oil blocked from getting to them. Bushing can help sure up and geometry misalignment, but its not 100% necessary in most cases.
We at MRL Performance make our own lifters. They are made from High quality materials, spot on CNC machining and are made to drop right in and last for a very long time.
The right solid roller will get you a better idle sound, more vacuum, more low end, more mid range and more top end power. The best of all worlds. There is always going to be a compromise with cams that dont have any type of variable timing, but its a lot less of a compromise with a solid roller.
See our web site for more info on our solid rollers
www.MRLPERFORMANCE.com
