oncei overheated my 22re BIG TIME while doin 6000rpm in deep,loose sand on the beach in Hatteras and overcrushed the head gasket from the head distorting,,,,we pulled off the ps pump bracket,valve cover,rockers and left the manifolds on and set the cam gear resting on the guides,lifted the head(still wired for sound)about 1 inch just enough to slip out the old head gasket and slip a new one in and it worked fine on the 600 mile drive home and beyond...............i dont really advise this but it is a testament to the stoutness and precision engineering of the 22re