Original Parts Group Logo
US & Canada Phone Number 1-800-243-8355
International Phone Number 1-562-594-1000
  Free Shipping $99 Promotion Banner
Part fits the following years: 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973

LeMans Rocker Arm Nuts, Perma-Loc Big-Block W/Girdle 7/16", by ARP

Part# CH24066

Mfg# 300-8249

Be the First to Review

SAVE: $19.96 Retail: $219.95

OPGI Price: $199.99


Brand: ARP
Part Type: (P) High Performance, designed to improve performance
Years: Sold As: KIT
2015 LeMans Catalog Page: 299
2016 LeMans Catalog Page: 305



  • 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.

It's Arriving Soon!
Please Call 1-800-243-8355
Point Coins Earn 199 points
Switch to Mobile Site »
If you see this, please contact your IT department and ask them to unblock www.opgi-static.com