DO YOU LIKE TO ASSEMBLE YOUR OWN MOTORS ? WELL WE HAVE HAD A LOT OF CUSTOMERS ASK FOR A SELF ASSEMBLED ENGINE ASSEMBLY SO HERE IT IS. WE SEND YOU A FULLY PREPPED BLOCK , CAM BEARINGS AND FREEZE PLUGS INSTALLED, A CRANKSHAFT, 8 RECONDITIONED RODS WITH THE PISTONS INSTALLED, A PAIR OF REBUILT HEADS, ALL THE BOLTS PUSH RODS ,ROCKERS , AND A COMPLETE ENGINE KIT. EVERYTHING YOU WILL NEED TO BUILD A LONGBLOCK. IF NEEDED WE WILL TALK YOU THROUGH ANY PART OF THE ASSEMBLY YOU MAY NEED HELP WITH. WE WILL NEED A CORE BACK BUT YOU WILL NOT NEED TO DISASSEMBLE IT.