Seller notes

This listing is for a brand new set of rocker arm pivot balls and lock nuts from Elgin Industries. Set comes with 16 balls and 16 nuts. The balls are heat treated and grooved for improved oiling to the rocker arm. Fits stock size 7/16" X20 fine thread rocker studs Ball Part Number: RM1797 Nut Part Number: RM1793 It will fit many of the following 1965-1990 big block Chevrolet and GMC V8 engines in passenger cars and light duty trucks. 366 CID (6.0L) 1966-1990 396 CID (6.5L) 1966-1970 402 CID (6.6...

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