Ben, the only 41 Plymouths sold here were a few sedans and the odd ute, coupes were last made in 1940 in Oz and were a unique Oz short roof/long boot coupe made from a sedan........most Oz mopars from the late 40's used the 25" long engine, very few 23" genuine Plymouth engines seem to have been used, which I suppose is similar to what happened in Canada.........the Dodge runs a 330 cube Poly, auto,4 wheel discs, etc the Plymouth will get a 230/finned head,twin carbs,T5 5 speed, discs, etc ......I know of a couple of people who can help you re the Kew intake/exhaust manifolds....the Plymouth has the short 23" 201 engine ...I usually come up to bananaland a couple of times a yr, May and August for some model shows, I've been involved in hot rodding since 1969, used to go to the various nationals etc but mainly just the local runs around here, Yamba, Valla, Armidale, Coffs etc.......have attached a couple more pics.......andyd