I BOUGHT SOM4E LOCKING ROCKER ARM BOLTS WITH THE ALLEN KEY LOCKS. wHEN i GO TO TORQUE THEM DOWN i CANT GET THEM TO TPORQUE TO THE 20LBS WITHOUT COMPRESSING ALL CYCLINDERS.
THESE ARE THE LOCKING NUTS i BOUGHT: Pioneer # S1010 SBC 262-400 Chevy 3/8" Stud Poly Locks/Rocker Arms Nuts http://www.ebay.com/itm/Pioneer-S1010-SBC-262-400-Chevy-3-8-Stud-Poly-Locks-Rocker-Arms-Nuts-/161595009928?hash=item259fd02b88:g:C6MAAOSwqu9U2NjE&vxp=mtr