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Product Description

Rocker Stud and Guide Plate Kit

7/16" Rocker Studs / Guide Plate Kit

 Small Block Chevy with 5/16" Pushrod's


Our screw in stud and guide plate kit offers discriminating buyers added value.

Builders can save a few bucks by purchasing these two parts in kit form.

This package includes sixteen 7/16" Rocker Studs & eight flat style guide plates to suit SBC running common 5/16” diameter pushrods.

7/16" studs replace smaller stock 3/8” diameter screw in studs perfectly. (*See Note)

Since all SBC screw in studs use 7/16"-NC threads on the bottom side, builders interested in improving the strength of their top end can select stronger, 7/16” studs over smaller 3/8” studs.

All that’s needed to complete the installation is a set of rockers for 7/16" studs.

If you need rockers anyway, it makes perfect sense to go 7/16”


  • SB Chevrolet heads machined to accept screw in studs and guide plates
  • * Heads w/ pressed in studs require machine work before installation


     Stud Specs:

  • 2.585" Overall Length
  • .825" Upper Thread Length
  • 1.775" Effective Length
  • .625" Base Thread Length
  • 7/16" diameter, bottom and top.

     Guide Plates:

  • Flat Style
  • Hardened Steel
  • Use w/ 5/16" Pushrods
  • For std valve spacing applications
  • Fits most GM/Chevy V8 Castings & many aftermarket heads

Not for aftermarket heads with unique valve spacing.

Example- will not fit some AFR heads due to altered valve centerline locations.

*NOTE: Many OE SBC heads use pressed in studs. Heads with pressed in studs require machine work.

Factory heads w/ screw in studs which normally used self aligning rockers (LT1, etc) should know adding guide plates will raise the stud height by the thickness of the guide plate.  Possible fitment issues are: The need for taller valve covers, pushrods and the possibility of a fitment issue with the poly lock. (rocker adjuster nut)

Do not install crimp style adjuster nuts without appropriate lubrication.

Alex's Parts, the smart choice in valve train parts!


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