"Old School" Stocker Cams

[SSDiv6]

Originally Posted by Bunkster

Ford 292 lifter:

Mushroom lifters were used in the early days of NASCAR, allowing camshaft profiles with more aggressive lobes. Direct Connection used to sell mushroom lifters for Mopar applications and also the required tool to modify the block.

Many years ago I heard the story of a racer that was running mushroom lifters in 15 lifter bores and left one bore with a normal size lifter in the event he was asked to pull a lifter to show tech.