herald65 Posted August 18, 2015 Share Posted August 18, 2015 Hello there,I thought I had a Herald (thought to be 1200) engine block, came free with my car. However I have just looked up the block number and it doesn't seem to refer to any triumph block... according to this site anyway. [Sorry, link no longer available] Heralds seem to mostly have prefixs beginning with G and a few YsThe engine number is CD124889HE I want to know what I have before I sell it 😀Andy Quote Link to comment Share on other sites More sharing options...
Jonny-Jimbo Posted August 18, 2015 Share Posted August 18, 2015 Are you sure the 'C' in 'CD; isn't a badly stamped 'G'? If that is the case then you could have a Herald 12/50 engine, which block-wise I believe to be the same as the 1200 engine block. Quote Link to comment Share on other sites More sharing options...
herald65 Posted August 18, 2015 Author Share Posted August 18, 2015 Quoted from Jonny-Jimbo Are you sure the 'C' in 'CD; isn't a badly stamped 'G'? If that is the case then you could have a Herald 12/50 engine, which block-wise I believe to be the same as the 1200 engine block. Oopp Yes it is, I should learn to open my eyes. 😀 Quote Link to comment Share on other sites More sharing options...
herald65 Posted August 18, 2015 Author Share Posted August 18, 2015 I also have a head that I thought went with it. Is there any way to tell between a 1200 head and a 1250 head. Is there even any differences? Quote Link to comment Share on other sites More sharing options...
Jonny-Jimbo Posted August 18, 2015 Share Posted August 18, 2015 Others would be able to tell more, but as I understand it, the head was the same on all 1200, 12/50 and possibly 13/60 engines too? Certainly I think the inlet and exhaust valves are the same, but the manifolds are different between 1200 and 12/50. Quote Link to comment Share on other sites More sharing options...
RobPearce Posted August 18, 2015 Share Posted August 18, 2015 Quoted from Jonny-Jimbo Others would be able to tell more, but as I understand it, the head was the same on all 1200, 12/50 and possibly 13/60 engines too? Certainly not 13/60! The 1200 was a six-port head, where the 1300 was eight-port.There may be machining differences between iterations of 1200 heads and the 12/50 head (compression ratio changes?) but I think the casting is the same. Quote Link to comment Share on other sites More sharing options...
Jonny-Jimbo Posted August 18, 2015 Share Posted August 18, 2015 Of course! I am a bleeding idiot at times. Quote Link to comment Share on other sites More sharing options...
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