Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Rocker Arm 3/8 Inch Poly Locks

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Rocker Arm 3/8 Inch Poly Locks

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Please NOTE the following about this product:

  • This item is sold as a set.



Q & A

What's in the Box

These Poly Lock 3/8" Set of special heat treated and plated 3/8" thread sure-lock nuts are supplied with an allen wrench. Set of 16.  5/8" Hex.  For use with stock style rocker arms.  .600 Diameter.

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For stock rocker arms only. Designed to keep the rocker arms positively locked for precise and critical valve train adjustments. Manufactured from quality grade steel, then heat-treated for extra strength and a durable finish. Kits include 16 rocker arm nuts with socket head set screws and one hex key wrench.