GMC Rocker Arm Bolts

If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in, you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP rocker studs are concentric within 0.005 T.I.R. thread pitch to thread pitch. They run in straight and true. Lengths are exact designed to provide positive seating every time. An extra large radius base offers greater resistance to flex. Available in both High Performance and Pro Series models. To be used with ARP patented Perma Loc(TM) adjusters.

Product Features:

• Made Of 8740 Chrome Moly Forgings
• Heat Treated To 180,000 PSI
• Excellent For Elapsed Time Bracket Racing, Limited Rule Oval Track Competition And Street Use
• Lengths Are Exact Designed To Provide Positive Seating Every Time
• Set of 16
• .800″ Adjuster Thread Length
• 3/8-24 Shank Diameter and Thread
• 3/8″ Typical Small Block Application

Mr. Gasket competition screw-in rocker arm studs are manufactured from heat treated black oxide coated Grade 8 steel. Ideal for high performance street and race applications.

Product Features:

• Black Oxide Coated Grade 8 Steel
• Kit Contains 16 Studs
• Easy To Install
• Heat Treated Steel
• Prevents Stud Flexing
• Black Plated Finish

If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in, you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP rocker studs are concentric within 0.005 T.I.R. thread pitch to thread pitch. They run in straight and true. Lengths are exact designed to provide positive seating every time. An extra large radius base offers greater resistance to flex. Available in both High Performance and Pro Series models. To be used with ARP patented Perma-Loc(TM) adjusters.

Product Features:

• Made Of 8740 Chrome Moly Forgings
• Heat Treated To 180,000 Psi
• Excellent For Elapsed Time Bracket Racing, Limited Rule Oval Track Competition And Street Use
• Lengths Are Exact Designed To Provide Positive Seating Every Time
• 1.9″ Effective Stud Length
• Set of 16
• .800″ Adjuster Thread Length
• 7/16″-20 Shank Diameter and Thread

ARP rocker studs are concentric within .005″, extra-large radius base offers greater resistance to flex. Note: To be used ONLY with ARP’s patented Perma-Loc adjusters. Made of 8740 chrome moly forgings and heat-treated to 180,000 PSI. Tip ground flush for optimum adjuster seating.

Product Features:

• 7/16″-14 Thread Size(s)
• .700″ Thread Length
• 8740 Chromoly
• 1.75″ Effective Stud Length
• Set of 16
• .800″ Adjuster Thread Depth
• 3/8″-24 Shank Diameter and Thread
• 3/8″ Typical Small Block Application
• Black Oxide

These are high quality nuts with allen set screws to provide you with that positive lock needed for Race or original equipment Rocker Arms.

Product Features:

• They Are Zinc Dichromate Plated Steel
• They Have Black Oxide Coated Set Screws
• Keeps Rocker Arms Positively Locked
• (16) Rocker Arm Nuts w/ Locks 3/8″-24 Threads
• Includes Locks and Hex Wrench
• Shank O.D. .603″