Going through a parts box and came across what APPEARS to be a Maxi hi torque head and jug. It has the correct number of fins, color of paint, shape of the bottom of the head where the gasket should go. However, the reference book I have says this head had no gasket, identifies the top as either a #11, 22 or 33 but there are NO NUMBERS on either the jug or head, and the brand new piston in the box is for a Maxi 38.0. Another source says that this particular engine has no replacement pistons anymore. So the question is whether or not this IS a hi torque top end and, if so, is it any good with the 38.0 piston or is it a waste of two items? Has anyone had success using a replacement piston with one of these cylinder heads?