It was just a curiosity question but if you look at some of the heads like this Mercedes on EBay 24 valves, big ports , http://cgi.ebay.com/ebaymotors/Mercedes-...sQ5fAccessories

'45 Ford PU
66 Valiant wagon, leaning tower of power.
79 Chevy C10 w/250
02 PT Cruiser Convertable