Carrillo SCR4249-6 Pro-H Beam Connecting Rods 3/8" CARR Bolt 21mm Pin

Key Features:

• Pro-H Straight H-Beam Design: The stoutest H-beam configuration available from Carrillo, engineered to absorb the most abusive forces in a race engine
• Proprietary "Carrilloy" Steel Alloy: Chrome, nickel, moly, vanadium alloy meeting all VAR (vacuum arc re-melt) ASTM standards for exceptional strength and durability
• Mar-Aged Heat Treatment: Delivers an ultimate tensile strength (UTS) of 195,000 psi and yield strength of 182,000 psi while maintaining low notch-sensitivity and ductility
• 3/8" CARR Rod Bolts Included: Carrillo's proprietary fasteners—available in H-11 tool steel (220,000 UTS) or Multiphase™ (285,000 UTS)—feature a patented thread design superior to standard ARP2000 bolts
• Oversized Forgings: Each rod is machined from an oversized forging to ensure proper grain flow and complete removal of surface inclusions
• Rigorous Quality Control: Every rod is magnafluxed at least twice, Rockwell hardness tested, CNC probed for dimensional integrity, and finished with a final shot peen operation
• Matched & Balanced Set: All six rods are weight-matched to within ±1 gram for smooth, balanced engine operation
• Made in the USA

Specifications:

• Rod Length (Center-to-Center): 4.783" (121.50mm)
• Wrist Pin Bore: 21mm (full-floating)
• Small End Width: 0.860" (21.84mm)
• Big End Bore: 2.0080" (51.003mm)
• Fastener: 3/8" CARR Bolt

The Carrillo SCR4249-6 connecting rod set is the choice of professional engine builders worldwide seeking maximum reliability and power in their RB-series engine builds.