I HAVE A SET OF CROWER 7.400 BILLET RODS WITH JE 18 DEGREE PISTONS. RODS, PISTONS, RINGS, AND PINS HAVE DYNO TIME ON THEM ONLY. EVERYTHING IS IS LIKE NEW AS YOU CAN SEE FROM THE PICTURES. I HAVE ALSO INCLUDED THE PISTON CARD FOR REFERENCE. PLEASE CALL WITH ANY QUESTIONS. IF YOU WERE TO PURCHASE THIS NEW YOU WOULD BE SPENDING OVER $4000. iF YOU WANT TO BUILD A 650 ALL YOU NEED IS A 4.875 CRANK. CALL ISLAND RACING 802-372-8565