Carrillo SCR7548-4 PRO-A Beam Forged Connecting Rod Set FA20 3/8 CARR Bolt

Built to handle the extreme demands of high-performance and motorsport applications, these rods deliver exceptional strength, precision tolerancing, and lightweight construction for serious engine builds.

Each rod is forged from Carrilloy — CP-Carrillo's proprietary chrome, nickel, moly, vanadium alloy steel that meets all VAR (Vacuum Arc Re-melt) ASTM standards. This material offers superior fatigue resistance and tensile strength compared to conventional rod alloys, making it a benchmark choice for high-horsepower engine builds.

Key Specifications:

• Rod Design: PRO-A Beam (asymmetric beam profile)
• Rod Length: 5.090 in. (129.3 mm) center-to-center
• Wrist Pin Bore: 22 mm, bushed, full-floating
• Rod Bolt: 3/8" CARR proprietary high-strength bolt
• Advertised Weight: 487 g per rod
• Material: Carrilloy forged steel (chrome/nickel/moly/vanadium alloy, VAR certified)

Key Features:

• Manufactured in the USA from oversized proprietary steel forgings for optimal grain flow and surface integrity
• Weight-matched set for superior rotating assembly balance
• CNC-machined to precise tolerances — clearances consistently within published blueprint specifications
• CARR bolt fastener system supports high-RPM operation with reliable clamp load retention
• Full-floating wrist pin design reduces pin bore wear and improves wrist pin lubrication

CP-Carrillo connecting rods are trusted by professional race teams across drag racing, road racing, and endurance motorsport disciplines worldwide.