Carrillo SCR5339-4 Pro-H Beam Connecting Rods 5.758in

Built from CP-Carrillo's proprietary Carrilloy 4330M steel alloy — a chrome, nickel, moly, vanadium blend meeting VAR (vacuum arc re-melt) ASTM standards — these rods deliver the strength, durability, and fatigue resistance demanded by serious engine builds.

Key Features:

• Rod Length: 5.758 inches center-to-center
• Wrist Pin: 21mm, bushed full-floating design
• Rod Bolt: 3/8" CARR (CP-Carrillo proprietary) bolt
• Advertised Weight: 527g per rod
• Beam Style: Pro-H (straight H-beam)
• Manufactured in the USA from oversized proprietary steel forgings for proper grain flow
• Each rod is magnafluxed twice and Rockwell hardness tested to validate heat treatment
• Final controlled shot peen operation for increased fatigue life
• Laser serialized for full traceability

CP-Carrillo's Pro-H beam design is widely regarded as a benchmark in high-performance connecting rod engineering. The CARR bolt fastener system is designed for reliable high-RPM operation, and each set ships as a precision-matched group for balanced performance. These rods are an ideal upgrade for forced induction, naturally aspirated, or all-out race builds on compatible 2.0L applications.