Guide plates and RAS4 Screw In Rocker Arm studs for Pontiac 400 428 455 D-ports
$ 62.10
- Description Set of 16 high quality RAS4 (stock length) 190,000 psi 7/16 rocker arm studs AND a set of 8 5/16 pushrod guide plates See my other listings for stock longer 7/16 rocker studs I’ve been using these studs and guide plates on my high end Pontiac engine builds for many years. Studs are the same length as the weaker 3/8 factory screw in studs. Its silly to use those anymore (if you can find good ones!) The guide plates are highest quality hardened steel for the factory 5/16 pushrods.2 plates replace one of the discontinued factory guide plates – they fit perfect every time!The studs are designed for guide plates and have a unthreaded area under the nut that locates the guide plates Used on most Pontiac D-port heads that have stock valve lengths. See my other listings for just the studs Requires 7/16 poly locks and manual adjustment. The adjustment is same as Chevy small block and there are many YouTube videos and Google searches to perform this task. Buy in confidence! Spotts Performance has been building and selling Pontiac V8’s since the late 70’s
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