This is a Triumph TR2- TR4A bare high port cylinder head It measures 84.80mm or 3.3385 inches. Stanpart # 302137 with 511695 .I have probably over 50 heads from thru the years. Time to start moving some before my shop sinks into the ground.We cleaned this up a bit . This will be a good base to work with. Bring it to your machine shop and have it gone thru. It looks in nice shape with no obvious flaws. Looks like this head was cleaned up a long time ago. In any case I guaranty this to be a good useable head. Because of the weight, overseas shipping probably will be quite expensive. Although, if you can figure out an overseas shipping option that works for you, I will gladly is gladly combined on multiple purchases to keep shipping costs as low as possible