340 adjustable LOCKING rocker arm kit

Locomotion said
OEM 340 6-pak engines did have the machined pad and jam/lock-nut on the adjuster.

Got a few questions:

* Does the OP have hydraulic lifters? (273 pushrods are normally about .25"-.30" too long for hydraulic lifters.)
* Were the rockers shimmed because the pushrods were too long?
* Mis-adjustment and/or rocker-to-retainer interference could have contributed to the bent pushrod as well.

FWIW, I don't have any to compare side-by-side, but I believe some aluminum rocker manufacturers, like Harland Sharp, use the bigger adjusters.

View attachment 1715954426

The lifters are Engine Pro HT-2011B for a stock 340, don't know why the shims were used and rockers, shims, adjusters came from Mancini. CompCam push rods 7821-16 7.389"x5/16". Also, the first two rockers a flopping around and I noticed, where i'm pointing, there is a small gap allowing those two rockers to slide left to right.

Rocker 1.jpg