Brian Crower ProH625+ Connecting Rods w/ ARP Custom Age 625+ Fasteners (Nissan RB26DETT)

Engineered for extreme horsepower and ultra-high boost applications, Brian Crower ProH625+ Connecting Rods (Part # BC6238) deliver ultimate bottom-end strength for Nissan RB26DETT engine builds. Forged from aerospace-grade 4340 chromoly steel, these ProH625+ H-beam connecting rods handle massive cylinder pressures in high-output drag, time attack, and circuit Skyline GT-R builds.

Equipped with ultra-high-tensile ARP Custom Age 625+ 3/8" fasteners rated above 260,000 psi, each rod features a micropolished finish, precision aluminum/silicone/bronze pin bushings, and finish-honed bores for flawless reliability under extreme loads.

Key Features & Benefits:

• 4340 Billet Chromoly Steel: High-tensile forged steel construction engineered for 1000+ HP and extreme boost levels.
• ARP Custom Age 625+ Fasteners: Premium ultra-high-strength rod bolts rated up to 260,000+ psi yield strength for maximum clamp force and bolt stretch resistance.
• Precision Micro-Polished Finish: Relieves surface stress concentrations to prevent fatigue cracking under extreme cylinder pressures.
• Aluminum/Silicone/Bronze Bushings: Premium wrist pin bushings ensure smooth pin rotation and reduced galling wear under heavy pin loads.

Technical Specifications:

• Center-to-Center Length: 4.783 in (121.5 mm)
• Big End Bore / Width: 2.008 in / 0.858 in
• Pin End Bore / Width: 0.827 in (21 mm) / 0.858 in
• Gram Weight: ~524 g
• Torque Spec: 50 ft-lbs (3/8" ARP Custom Age 625+)
• Warranty: Brian Crower Manufacturer Limited Lifetime Warranty
• Brand: Brian Crower