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Part fits the following years:1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976

ARP

1959-77 Bonneville Rocker Arm Nuts, Perma-Loc Stud Girdle, 7/16" X 2.00"

Part# CH24064

Mfg# 300-8247

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SAVE: $21.96 Retail: $236.95

OPGI Price: $214.99

FREE SHIPPINGDISCOUNTED KIT

Part Type: (P) High Performance, designed to improve performance
Years: Sold As: KIT
2016 Bonneville Catalog Page: 233
2017 Bonneville Catalog Page: 240

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Heat-treated

  • NOTES
  • NOTE1: These high-performance items are not eligible for any further discounts or promotional pricing.

ARP Perma-Loc rocker arm nuts are made not to loosen. Reason being, the adjuster body is heat-treated all the way through (not just casehardened), which eliminates "thread" movement. The threads are machined exactly perpendicular to the bottom of the adjuster, so it seats evenly and applies pressure on a full 360° circle. The screw is machined flush on the bottom (not pointed) to have optimum contact on the rocker arm stud.

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