Crower B93770B-1 Features:

Billet connecting rod for Nissan QR25DE 2.5L, single rod, part number B93770B-1 CNC-machined from aircraft-quality 4340 chromoly steel to tolerances within 0.0001 in. 100% magnaflux-inspected, surface hardness checked, weight-balanced, and shot-peened Drilled and chamfered wrist-pin oil holes with 1-piece aluminum-bronze bushing for added pin-end oiling

Billet Crowerods Nissan Q 4340 Chromoly Steel, H-11 Rod Features:

• 4340 chromoly steel billet construction, CNC-machined to 0.0001 in. tolerances, fully weight-balanced for precise high-rpm stability
• 100% magnaflux-inspected, surface-hardness verified, and shot-peened for stress relief and long-term fatigue resistance
• Drilled and chamfered wrist-pin oil holes with 1-piece aluminum-bronze bushings help reduce galling under heavy load
• Deep double-ribbed caps with hollow-dowel alignment system resist cap walk and maintain structural integrity at high rpm
• Premium 12-point H-11 tool steel rod bolts rated at 220,000 PSI for high-boost, nitrous, and elevated-rpm durability