Flat tappet lifter failure

[Mike Pearson]

The cat is already out of the bag when it comes to stock eliminator. Not much on a stocker is stock anymore. I dont race stock but do watch what happens to the class.
Lots has change over the years. Lately the lifter rule to allow solid lifters in an engine combo that was hydraulic. Next was the new rule that allowed roller rockers. How many still run hydraulics and stock rockers. Probably not many. There was also the spring rule. Stock diameter any pressure. most of the later model cars that run stock now have roller lifters. I can see that change being approved in the near future for the older combos.