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ARP 154-6423 High Performance Wave-Loc Connecting Rod Bolts 8740 Chrome Moly

(Ford F-150 1977-82, Mustang 1970-73, Bronco 1978-82, Galaxie 500 1970-74, F-250 Pickup 1977-82, Fairlane 1970, Ranchero 1970-79, Torino 1970-76 + 15 more models)

Manufacturer

Picture for manufacturer ARP

Part Number

154-6423
8 reviews
Sale Price

$11.07

Estimated ship date Thursday, November 26

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Product Details

The ARP 154-6423 connecting rod bolt kit delivers the legendary strength and reliability that has made ARP the choice of professional engine builders and racing teams worldwide. This 2-piece high performance Wave-Loc kit features 8740 chrome moly construction, providing the critical upgrade needed to ensure your connecting rods can withstand extreme loads and high RPM operation.

Why ARP Rod Bolts are Superior:

The connecting rod bolt has always been the weak link in any high-performance engine build. ARP rod bolts have been proven through rigorous testing to deliver ten times the fatigue strength of competing fasteners, which is why leading connecting rod manufacturers specify ARP bolts as original equipment. Each bolt is forged in-house using only premium materials and undergoes ARP's proprietary heat treatment and manufacturing processes to ensure maximum strength and durability.

Wave-Loc Technology Benefits:

  • Precision wave surface contacts rod and cap for optimal alignment and reduced fluctuating stress
  • Provides interference fit of .001 to .005 inches for secure installation in OEM connecting rods
  • Superior material grain flow compared to knurled bolts that create stress risers
  • Eliminates galling and scoring with smooth contact surface
  • Strengthens the connecting rod itself through improved load distribution

8740 Chrome Moly Construction:

These bolts are manufactured from 8740 chrome moly steel, a quench and temper alloy delivering tensile strengths between 180,000 and 210,000 psi. This material provides excellent toughness and adequate fatigue properties for most racing applications, making it the cost-effective choice when bolt strength appropriately matches anticipated loads with proper safety margin.

ARP Manufacturing Excellence:

  • Forged in-house using only the finest quality materials
  • Heat-treated using special vertical racks for complete 360-degree penetration
  • Threads rolled after heat-treat to provide up to 10 times longer fatigue strength
  • Precision CNC-machined to exacting specifications
  • ARP name stamped on each bolt as assurance of quality

Important Maintenance Note:

Monitor bolt stretch regularly and replace any bolt that has permanently elongated by .0005 inches to maintain optimal performance and safety.

Kit Contents: 2 pieces

Products specifications

Fits

Ford F-150 1977-82, Mustang 1970-73, Bronco 1978-82, Galaxie 500 1970-74, F-250 Pickup 1977-82, Fairlane 1970, Ranchero 1970-79, Torino 1970-76, Falcon 1970, F-350 Pickup 1977-82, E-350 Econoline 1975-82, Gran Torino 1972-76 + 11 more models

Bolt/Stud Head

C Style

My order #4383 was fulfilled quickly and shipped in a timely fashion. The price was super competative and the web site is user friendly. I will be back for more I'm sure! Shipping should be free for orders over a certain price, say $50?!?!

Great price and received item in a timely and in great condition. Will definitely shop here again!

Website is easy to navigate. Parts are easy to find. Checkout was very simple to use. Good overall service.

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Discount code would have been nice

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