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Poly Locks

Isky Poly Locks replace OEM crimped rocker arm adjusting nuts and eliminate the bothersome re-adjustment procedures associated with the stock components, which are prone to come loose during competition. The alien set screw threads into the large hex-nut and securely shoulders against the top of the rocker stud to provide steadfast valve lash adjustment.


Model Product Image Item Name Price
204716PL POLY LOCKS

POLY LOCKS

Application: Chevy 265-350, 7/16 Stud (204-716, 204-6-716 & 204-65-716 Part No.ís)
$130.00

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20496PL POLY LOCKS

POLY LOCKS

Application: Chevy 396-454 (204-96 & 204-96-8 Part No.ís)
$130.00

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204PL POLY LOCKS

POLY LOCKS

Application: Chevy 265-350, 3/8 Stud (204 & 204-6 Part No.ís)
$130.00

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PL38 POLY LOCKS

POLY LOCKS

Application: Chevrolet Small Block and Ford 221-260-289-302 V8 & Pontiac 55 and 61 and up
$90.00

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PL516 POLY LOCKS

POLY LOCKS

Application: Pontiac V-8 1956-60 & Ford 351 Windsor
$90.00

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PL716 POLY LOCKS

POLY LOCKS

Application: Chevrolet 396-454 and Pontiac NASCAR 61-63
$90.00

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