I used the ones with the 703 cam kit, on day when starting the engine, a lifter did not pump up, plunger was clear down, bent a pushrod and tore up the rocker.
That sucks but I'm not surprised. Anything manufactured is bound to have a few out of box failures. I lost the first cam in my 340 to guide clearance issues. I have the lifter on my garage wall to remind me to check everything. Was the plunger stuck/jamed in the lifter?
