Carrillo SCR4248-4 PRO-H 3/8 CARR Bolt Connecting Rod Set Honda K24

Featuring Carrillo's legendary H-beam design with 3/8" CARR Multiphase bolts, this rod set is built for high-horsepower and high-boost applications where no compromise in performance is acceptable.

Key Features:

• PRO-H H-Beam Design: The H-beam profile delivers maximum strength and durability, making it Carrillo's strongest rod design and the preferred choice for all-out race builds
• 3/8" CARR Multiphase Bolts Included: CARR fasteners feature a UTS of 285,000 PSI and can be re-torqued indefinitely when the stretch method is followed — a significant upgrade over standard ARP2000-style hardware
• Carrilloy Proprietary Steel: Each rod is forged from Carrillo's exclusive chrome, nickel, moly, vanadium alloy (Carrilloy), meeting all VAR (vacuum arc re-melt) ASTM standards
• Oversized Forgings: Manufactured from oversized steel forgings to ensure proper grain flow and eliminate surface inclusions
• Extensive QC Process: Each rod is magnaflux tested twice and Rockwell hardness tested to validate heat treatment, followed by a controlled shot peen operation
• Mar-Aged Heat Treatment: Heat treat process results in 195,000 UTS with a yield of 182,000, while maintaining low notch-sensitivity and ductility
• USA Made: Manufactured at CP-Carrillo's facility in Southern California

Each kit includes Carrillo's proprietary molybdenum-based assembly lubricant. These rods are the benchmark choice for K24 builds targeting extreme power levels in turbocharged, supercharged, and naturally aspirated applications.