Hello does any one know proper size I think you call it torx bit in that would fit half inch drive to remove the head bolts on the 617 motor? Also a part # for the heater hose that would go from the middle of the motor to the firewall. I'm putting a different motor in my sd and my engine hose exited at rear of motor and on new motor it exits it exits in middle trying to eliminate a splice hose has to have a 90 as soon as it comes off motor then go to rear auxiliary firewall. And could someone also tell me the thread size and pitch of the thread in the head that the lock nut that holds the prechamber in is that is the thread in head not thread that injector screw into. Thanks