ARP 200-6209 Connecting Rod Bolt Kit Pro Series - ARP2000 8-Piece

The ARP 200-6209 Connecting Rod Bolt Kit Pro Series is a general replacement rod bolt kit for steel connecting rods, made from ARP2000 alloy steel. This kit contains 8 pieces. The connecting rod bolt is the weak link in a rod, and ARP Pro Series rod bolts are designed to address that with strong materials and careful manufacturing.

Key Features:

• ARP2000 alloy steel, which can be safely heat treated to a higher level than 8740 chrome moly and is capable of a clamp load of 220,000 psi
• Forged in-house at ARP
• Heat-treated on special vertical racks to ensure complete 360-degree penetration
• Threads rolled after heat-treat for longer fatigue strength
• Precision CNC-machined to exacting specifications
• ARP name stamped on each bolt

Wave-Loc Features:

• The Wave-Loc surface contacts the rod and cap for optimum alignment and reduced fluctuating stress
• Provides a snug fit in OEM connecting rods (interference range of .001 to .005) despite a wide range of factory bolt hole tolerances
• The patented Wave-Loc design gives better material grain flow than knurled bolts, which have sharp edges and built-in stress risers
• Galling and scoring of the rod is virtually eliminated, since contact is smooth with no digging

About ARP2000: ARP2000 is widely used in short track and drag racing as an upgrade from 8740 chrome moly in both steel and aluminum rods. Stress corrosion and hydrogen embrittlement are typically not a problem when care is taken during installation.

Service note: Monitor the stretch of each rod bolt and replace it once it has permanently elongated by .0005.