Fitment: For Honda GX340 390 420 Engine Go Kart Mini Bike.4.450" center to center for a 1.416" crank pin and a .788" wrist bore.Note that the minimum clearance between piston and head is 0.030".
Package Includes: 1*Connecting Rod,2*Bearings.
Strength improvement: Use more durable materials to improve bolt strength and avoid bolt breakage. Bolts can reach 170 inches/lb.Uses 5/16" rod bolts.Use an inch pound torque wrench with a 1/4″ 12 point socket.
Installation method: The product contains a manual with detailed installation steps. Please strictly follow the manual to avoid product damage.
Packaging upgrade:Exquisite packaging box,all parts of the product are separated by soft materials,to avoid collision damage caused by the transportation process,to avoid scratches and damage caused by the collision between the bearing and the connecting rod.