KPMI, Rocker arm tower stud and nut set


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Superior replacement hardware for mounting the stock rockerarm shaft to rocker arm tower bolts. The one time installation of these studs help prevent damage to the rocker arm tower bolt threads and consequent damage when rocker arms come loose in a running engine. Especially advised when running high lift cams. Studs are made of heat threaded aircraft alloy steel with 5/16-18 UNC to 5/16-24 UNF rolled threads. 180.000 psi yield strength with a black oxide finish for corrosion resistance. Note: Replacement nuts only are separately available as 587242.