This is ARC's 3.875" Pro Series Billet rod. It is a stock replacement for the Briggs Intek 305, Model 20 engine. This product is CNC machined from aircraft grade 7075-T651 aluminum. Key features include an oil groove in the crank bore that is fed though a channel in the integrated dipper. The rod also includes an oil groove in the wrist pin bore that provides a reservoir of lubricant for the wrist pin.
Wrist Pin Bore: 0.673"
Forced Oil Dipper
Rod bolt torque: 170 in/lbs lubricated
Rod bearing and high strength ARP rod bolts included