Evo 123 - Brian Crower - 4G63 H-Beam Connecting Rods (ProH2K)

Brian Crower ProH2K connecting rods — forged H-beam set, 4G63

The factory 7-bolt rods are the part of a 4G63 that decides how much boost the engine will tolerate, and they are not generous about it. This set replaces all four with forged 4340 H-beam rods carrying every feature of BC's flagship ProH625+ design, paired with ARP2000 fasteners to keep the package sensible on cost. Each rod is CNC machined, micropolished, fitted with an aluminium-silicon bronze pin bushing and finish honed, so the set arrives ready for a builder to weigh, fit and assemble. This is the point where an Evo 1/2/3 stops being a stock motor with boost added and becomes a built one.

• Forged 4340 aerospace-grade chromoly steel
• H-beam profile (ProH2K)
• 5.906 in center-to-center length
• ARP2000 rod bolts, rated to 220,000 psi
• CNC machined, micropolished and finish honed; supplied as a complete set

Fits:

• Mitsubishi Lancer Evolution I (CD9A, 1992–1994)
• Mitsubishi Lancer Evolution II (CE9A, 1994–1995)
• Mitsubishi Lancer Evolution III (CE9A, 1995–1996)

Brian Crower part #BC6103. Available to order; shipping shown at checkout.