Evo 123 - Brian Crower - 4G63 H-Beam Connecting Rods (ProH2K)
ProH2K H-Beam Connecting Rods for the 4G63
Brian Crower ProH2K connecting rods are a forged H-Beam rod built to handle the boost, rpm and cylinder pressure a modified 4G63 demands. The ProH2K design carries every feature of BC's premier ProH625+ rod, paired with proven ARP2000 fasteners for a strong yet cost effective package. Each rod is CNC machined, micropolished, fitted with aluminum, silicone and bronze pin bushings and finish honed to exacting tolerances. Sold as a complete set.
Specifications
- Material: 4340 aerospace grade chromoly steel, forged
- Beam Style: H-Beam (ProH2K)
- Fasteners: ARP2000, rated to 220,000 psi
- Length: 5.906 inch center to center
- Finish: CNC machined, micropolished, finish honed
Why it matters on your Evo 1-3
The factory 7-bolt rods are a known weak point once boost and power climb past stock levels. Upgrading to forged 4340 H-Beam rods gives an Evo the bottom end strength to safely turn up the boost, add rpm and push higher horsepower targets without the risk of bending or breaking a stock rod.
Fitment
Mitsubishi Lancer Evolution I, II and III (CD9A / CE9A), 1992 to 1995. 7-bolt 4G63T 2.0L turbo.
