Paul Garvey Posted February 11, 2009 Share Posted February 11, 2009 I'm in NZ and looking at building up a 'fast-road' (100bhp) engine for my Mk2 Spitfire and have an unmolested 57000 mile 1300 Toledo DG engine as a base.I'm unsure if the head has the larger inlets similar to the Spitifire IV - TR6 valves. If so I expect I'll modify a 13/60 block (bearing the cam) and use the larger valve head.I'd appreciate any advice on this as well as a fast-road 'recipie'? Thanks,Paul Link to comment Share on other sites More sharing options...
thealligator Posted February 11, 2009 Share Posted February 11, 2009 DG motor should have the larger valves.Has the larger crank a tuff motor I had one I canned to death and it wouldn't dye.100 thou off the head polish and port it.TH5 cam, lighten balance the bottom end.Pair inch and haft SU's with a 4 branch = 100 bhp Link to comment Share on other sites More sharing options...
Paul Garvey Posted February 12, 2009 Author Share Posted February 12, 2009 Many thanks Link to comment Share on other sites More sharing options...
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