Carrillo SCR5154-4 Pro-H 3/8 WMC Bolt Connecting Rods BMW S14B23 S14/B25

Featuring a 144mm center-to-center length and secured with premium 3/8" WMC (non-stretch) rod bolts, this set is built to handle the extreme demands of both high-performance street builds and motorsport competition.

Key Features:

• Pro-H H-Beam design — the stoutest straight H-beam configuration available from Carrillo, optimized for maximum strength and rigidity
• Proprietary Carrilloy alloy — a chrome, nickel, moly, and vanadium steel blend meeting all VAR (Vacuum Arc Re-Melt) ASTM standards
• Mar-aged heat treatment — delivers a UTS of 195,000 psi and yield of 182,000 psi while maintaining low notch-sensitivity and ductility
• Oversized forging process — ensures correct grain flow and eliminates potential surface inclusions from the forging process
• CNC probing validation — all critical CNC operations are verified with probing to guarantee dimensional integrity and tight tolerances
• 3/8" WMC rod bolts included — high-quality non-stretch fasteners for reliable clamping force
• Manufactured at Carrillo's facility in Irvine, California, USA

Carrillo connecting rods have been a benchmark in motorsport since 1963, trusted by professional racing teams and engine builders worldwide. The SCR5154-4 set is ideal for performance engine rebuilds, forced induction builds, and race applications using the BMW S14 engine platform.