eBay

This listing is for a brand new set of rocker arm lock nuts that are fromElgin Industries. Set comes with 16 nuts.

They are the self locking style nut and fit 7/16" x 20 fine thread rocker studs.

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 (6.6L) 1970-1972
427 CID (7.0L) 1966-1990
454 CID (7.4L) 1973-1990

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Buy with confidence! eBay seller since December 15, 2000.

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