The 12G295 head is the open chamber, big valve performance head for small-bore motors; you can see the similarity to the 1275 head. First used on the 998 Cooper with a raised-top piston, and also found on 1098cc MG Midget and MG1100. Suitable for use on A+ 998s with flat top pistons. Fully rebuilt and converted for use with unleaded fuel; sold outright.