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When I overhauled the 396 in 1997, I installed Comp Magnum rocker arms and used the supplied nuts. I wasn't particularly impressed with the locking capability of the nuts when new, but this year they've gotten so bad that one rocker loosened on its own to the point of clattering. I finally got around to "fixing" it July 4th, when "real" parts stores were closed, ended up chasing down stock replacement rocker arm kits at chain stores to rob them of the nuts. An expensive way to get 4 nuts.
I'm thinking a full new set is in order, but not sure which ones to get. These are self-locking hex nuts with a chamfer on the bottom side (same style as stock). If someone has a recommendation for replacements, I'm all ears.
I'm thinking a full new set is in order, but not sure which ones to get. These are self-locking hex nuts with a chamfer on the bottom side (same style as stock). If someone has a recommendation for replacements, I'm all ears.