The original One Ten of 1983 was available with the same engine line-up as the Series III vehicles it replaced, namely 2.25-litre (137 cu in) petrol and diesel engines, and a 3.5-litre (210 cu in) V8 petrol unit, although a small number of 3.2-litre (200 cu in) V8s were produced. (taken from wikipedia)
ive seen a few series 3s that have the v8 in most were the 3.5 sdi engines which were virtually bombproof, i found this website on v8s thought it might help http://www.expeditionlandrover.info/...version_V8.htm and a friend down the road used these for bits http://www.expeditionlandrover.info/...version_V8.htm hope this all helps looking forward to seeing it running