Engines and Components› Pistons and Piston Rings

Manley Performance

Manley Valve Lock/Keeper, LOC-TI 8 deg PRO 900 .3100 +.050

$192.75

SKU: M004 13994TC-8

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In Stock
Ships by Jun 11
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Non-Returnable Item
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Description

The Manley Performance valve locks are designed for PRO 900 valve springs and feature an 8-degree locking angle. These valve locks are PVD coated for easier disassembly in high spring tension applications. They are designed for valve stems measuring 5/16" or .3100" and have an installed height of .050" more than standard.

Specifications include a >0.500" gauge diameter and a lash cap recess. The Pro 900 Series valve locks are engineered for high-performance engine applications requiring precise valve retention.

Fitment

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Specifications

BrandManley Performance
Part NumberM004 13994TC-8

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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