16 valve

Does anyone have the dimensions for stock 1.7 16 valve intake and exhaust valves? I need the valve head diameter, but the stem diameter and the length is appreciated too. Even better would be if anyone knew of a site which had the more technical dimensions and measurements of the engines...

Wrecking 2 164's, 2 33 16 valves, 1.7ie, and sprint and guilietta. heaps of various alfa parts. Just ask i may have it!!! beautiful 3.0 12v v6 and 16v and 8v 1.7 boxer motors available!!! Cheap prices!!! Parts located near lismore nsw Australia 2480, pick up is ok, postage and freight...