Compatible for Alfa Romeo nord 2000 ARP bolts 157mm 4340 EN24 4 Pieces Connecting Rod RodsDescription A connecting rod, also called a con rod, is the part of a piston engine which connects the piston to the crankshaft. Together with the crank, the connecting rod converts the reciprocating motion of the piston into the rotation of the crankshaft. The connecting rod is required to transmit the compressive and tensile forces from the piston, and rotate at both ends. Maxpeedingrods provides connecting rods at the most competitive price and