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COMP Cams
COMP Cams Poly Lock 3/8 High Energy Alu
SKU: C007 4631-16
Advanced — 4+ hours
Description
Part #: 4631-16
High Energya Aluminum Polylocks with 3/8" Stud diameter.
These 1.125" tall polylocks fit our 3/8" High Energy Die Cast Aluminum roller rocker arms. Perfect for moderate lift and spring pressure applications.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
MIA's Description
Constructed from special alloys, these nuts ensure quality and strength. They have an overall height of 1.13 in. and a shank diameter of 0.60 in. This set is sold as a set of 16 and is intended for use with aluminum rockers and does not accommodate a stud girdle.
Fitment
Fitment Guaranteed
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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | COMP Cams |
| Part Number | C007 4631-16 |
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Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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