Original Parts Group Logo
US & Canada Phone Number 1-800-243-8355
International Phone Number 1-562-594-1000
 Grand Prix Free Ground Shipping on Orders Over $99 Promotion Banner
Part fits the following years:1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977


1959-77 Grand Prix Rocker Arm Nuts, Perma-Loc Stamped Steel Rocker, 7/16"

Part# CH24061

Mfg# 300-8242

Be the First to Review

SAVE: $7.96 Retail: $82.95

OPGI Price: $74.99


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


  • 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.

Make & ModelYear RangeApplication Details
Chevrolet Chevelle1964-1977 Stamped Steel
Chevrolet Malibu1978-1988 Stamped Steel
Chevrolet El Camino1964-1977 Stamped Steel
Chevrolet El Camino1978-1988 Stamped Steel
Chevrolet Monte Carlo1970-1977 Stamped Steel
Chevrolet Monte Carlo1978-1988 Stamped Steel
Pontiac GTO1961-1973 Stamped Steel
Pontiac LeMans1961-1973 Stamped Steel
Pontiac Tempest1961-1973 Stamped Steel
Pontiac Grand Prix1959-1977 Stamped Steel Rocker, 7/16"
Pontiac Catalina1959-1977 Stamped Steel Rocker, 7/16"
Pontiac Bonneville1959-1977 Stamped Steel Rocker, 7/16"
Low Stock Alert!
Only a few left in stock.
Available for immediate delivery.
Point Coins Earn 74 points more info
Switch to Mobile Site »
If you see this, please contact your IT department and ask them to unblock www.opgi-static.com