This is the stock replacement connecting rod for the O.S. Max .40-.46 VF, .40-.46 SF, .40-.46 SF-H, and .40-.46 FX series engines. FEATURES: Precision CNC machined aluminum construction. Brass bushings pre-installed. INCLUDES: One connecting rod with two pre-installed bushings. REQUIRES: None, item is a stock part SPECS: Overall Length: 43.5mm (1.71") Top bushing diameter: 4.9mm (.195") Bottom bushing diameter: 6mm (.236") COMMENTS: Top & Bottom bushing feature "oil" holes for proper lubrication. NNA 3-17-02 ir/kh