Mitsubishi 4G63 and 4B11T engines are among the most popular sport compact platforms for horsepower enthusiasts, and K1 Technologies has these potent 2.0L powerplants covered with a selection of premium quality, H-beam style connecting rods. Among the most popular are 150mm and 162mm long rods for the 4G63 and 143.7mm rods for the 4B11T.
Forged from 4340 alloy steel and precision machined to remove unnecessary weight for optimal strength-to-weight ratio, they are fitted with premium ARP2000 (220,000 psi) rod bolts. Additionally, each the surface of each is shot peened to reduce stress risers and smooth surface blends, improving fatigue life and for long and reliable use. Premium bronze wrist pin bushings in the small end improve wear resistance of the wrist pin and connecting rod, along with the small end oiling hole features.
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Finish machined in K1’s Mentor, Ohio facility, the bores are held to a tolerance of +/- .0001” with 50 millionths on the big end to assure optimum bearing life. Each rod is balanced to +/- one gram per end, which is checked and recorded by K1’s in-house quality team.
K1 Technologies also has connecting rods for other Mitsubishi applications (6 and 7-bolt), as well as premium billet steel crankshafts (88, 94 and 100mm strokes) for the 4G63.