ARP: Perma-Loc® Rocker Arm Adjusters

Readjusting the locker arms on your performance engine just got a lot less irritating. ARP’s patented Perma-Loc® adjuster is the first “poly lock” on the market that you don’t have to continually tighten. Perma-Loc® achieves this feat in a few ways.

First, the adjuster body is heat-treated all the way through—not just case-hardened—eliminating the thread “movement” common to other products.

Second, the threads are machined perpendicular to the bottom of the adjuster, so it seats evenly and applies pressure in 360 degrees.

Last, the set screw is machined flush on the bottom (not pointed), producing optimal contact on the rocker arm stud.

Perma-Loc® is also easy to use: ARP designed the compact 12-point head to hold your wrench in position while you lock the set screw with an Allen wrench—no special adjusting tools necessary.

Features

  • First “poly lock” on the market you don’t have to continually tighten
  • Heat-treated 8740 alloy chromoly steel achieves 190,000-psi tensile strength.
  • Bottom machined perpendicular to the threads
  • Threads precision-machined for maximum engagement
  • Locking set screw ground flush with the rocker arm stud
  • 12-point head holds the wrench to eliminate the need for special adjusting tools
  • Patent #5,323,741

Ready to buy? Need help with the install? To find your nearest Performance Corner® affiliate, see our Store Locator. Or join the conversation at the Performance Corner® Facebook page!

Though this is not a paid review, this content has been produced by The AAM Group in support of suppliers with whom it has a business relationship.

ARP: Pro Series Head Stud Kits for Big Block Chrysler

Manufactured from premium-grade 8740 chrome-moly and available with either hex or 12-point nuts, the new BBC head stud kits from ARP feature centerless-ground Pro Series studs heat-treated before thread rolling and nominally rated at 200,000 PSI tensile strength. Kits includes a 0.5 oz. pack of ARP Ultra-Torque fastener assembly lubricant and are available for immediate delivery.

Two part numbers available:

  • 145-4014: Big block Chrysler 383-440 with Edelbrock Victor 77919 or 77920 heads hex.
  • 145-4301: Big block Chrysler 383-440 with Edelbrock Victor 77919 or 77929 heads 12-point.

Features

  • Choose from hex nuts or 12-point nuts.
  • Made from premium-grade 8740 chrome-moly.
  • Centerless ground and heat treated.
  • Rated at 200,000 PSI tensile strength.
  • Includes 1/2-ounce pack of ARP Ultra-Torque fastener assembly lubricant.
  • Available for immediate delivery.

ARP Pro Series Stud Kits for Big Block Chrysler

Ready to buy? Need help with the install? To find your nearest Performance Corner® affiliate, see our Store Locator. Or join the conversation at the Performance Corner® Facebook page!

Though this is not a paid review, this content has been produced by The AAM Group in support of suppliers with whom it has a business relationship.

ARP (234-4344): ARP2000 Head Stud Kit for Chevrolet LS (2003 & Earlier)

Pro Series ARP2000 head studs for Chevy LS (2003 and earlier) from ARP, centerless ground and heat treated before thread rolling, are designed to maximize reliability and strength, with nominally rated 220K psi tensile strength.

The 234-4344 kit includes a set of twenty M11 head studs, ten M8 studs, thirty parallel-ground washers, thirty 8740 chrome-moly 12-point nuts, and ARP’s own Ultra-Torque fastener assembly lubricant.

Features

  • For 2003-and-earlier Chevy LS engines.
  • Built for strength and longevity.
  • Centerless ground and heat treated.
  • 220,000 psi tensile strength rating.

Ready to buy? Need help with the install? To find your nearest Performance Corner® affiliate, see our Store Locator. Or join the conversation at the Performance Corner® Facebook page!

Though this is not a paid review, this content has been produced by The AAM Group in support of suppliers with whom it has a business relationship.

ARP (140-5002): 12-Point Main Bolt Kit for Chrysler 273-440 Wedge

ARP (Automotive Racing Products) has just released a new high-performance 12-Point Main Bolt Kit for Chrysler 273-440 Wedge applications. These bolts are cold forged to ensure molecular integrity, heat treated before thread rolling and machining, and nominally rated at 200K tensile strength. The 140-5002 kit boasts an optimal design based on enhanced reliability and strength.

Kit Contents:

  • (10) 8740 chromoly 12-point main bolts.
  • (1) premium chromoly chamfered washers.
  • (1) 0.5 oz pack of ARP Ultra-Torque fastener assembly lubricant.

ARP (140-5002): 12-Point Main Bolt Kit for Chrysler 273-440 Wedge
ARP (140-5002): 12-Point Main Bolt Kit for Chrysler 273-440 Wedge

Ready to buy? Need help with the install? To find your nearest Performance Corner® affiliate, see our Store Locator. Or join the conversation at the Performance Corner® Facebook page!

Though this is not a paid review, this content has been produced by The AAM Group in support of suppliers with whom it has a business relationship.

ARP (234-7208): Pro Series Rocker Stud Kit for Small Block Chevy 6.2L (LT1/LT4)

ARP, the world leader in fastener technology, has just released a new Pro Series Rocker Stud Kit for Small Chevy 6.2L (LT1/LT4) engines.

ARP 234-7208 includes a set of sixteen 8740 chrome-moly Pro Series rocker studs and sixteen chrome-moly flange nuts.

All ARP Pro Series rocker studs are heat treated prior to thread rolling and machining and are nominally rated at 200,000 PSI tensile strength—substantially stronger than grade 8 hardware. Optimum design, enhanced reliability, and increased strength distinguish ARP’s Pro Series Rocker Stud Kits.

ARP 234-7208
ARP 234-7208

Ready to buy? Need help with the install? To find your nearest Performance Corner® affiliate, see our Store Locator. Or join the conversation at the Performance Corner® Facebook page!

Though this is not a paid review, this content has been produced by The AAM Group in support of suppliers with whom it has a business relationship.