Shelby Aluminum

[Keithc8]

The biggest problem we have seen with the off-set lifter is that it seems to wear the roller wheel out quicker. Actually the needle bearings in the wheel of the solid roller lifters. This why in most cases we use a set of 2100.00 Jesel lifters with the much larger wheel that can take the added spring pressures and side load on the wheel. I have found that when aluminum blocks are used in these extreme conditions that we busch the block for better life on the lifter bore. We are now running some of these engines with 420lbs seat and 1100lbs open. These are the only lifters that the Pro Stock guys can get to live as well as the Busch guys. We run them mostly in our Turbo and blower small blocks in the Pro 5.0 stuff because of the spring pressures and we are turning these engines 9500rpms and making 2200HP. We use them in the dirt late model engines as well because we will put about 1200 laps on them between freshen ups and we run more spring pressure on them than ever before with 9000 rpms. The other lifters will not take the abuse. I think we do not have to worry about this to much in these replicas. The Jesel lifters also last about 5 times as long as the regular 300.00 lifters and if you ever break a solid roller lifter those needle bearings make a big mess of the engine. We also go to the bigger .903 and .930 mlifters as well because then you can have even a larger roller wheel. Its just cubic dollars. Thanks Keith