Paulsb Posted May 10, 2016 Report Share Posted May 10, 2016 hello all,i have been told this evening that the engine in my tr6 is actually from a gt6,is this good or bad, thanks in advance for any replies. Quote Link to post Share on other sites
Graham Posted May 10, 2016 Report Share Posted May 10, 2016 Paul afraid to say if your engine is for a GT6 then it will be 2 litres not 2.5 litres that it should be ATB Graham Quote Link to post Share on other sites
Nigel Triumph Posted May 10, 2016 Report Share Posted May 10, 2016 What are the first two characters of your engine number? KC or KE is 2 litre GT6, rated around 100bhp. CP or CR is 2.5 litre UK spec injected TR6, rated at about 150 and 130bhp respectively. Nigel Quote Link to post Share on other sites
GT6M Posted May 10, 2016 Report Share Posted May 10, 2016 Just cos its got a GT engine number, dont mean its a 2 litre, My GT, KE, is 2.5, not 2.0L so maybe woe ever said it were a GT engine, actually meant it were a GT comm number, thats all. M Quote Link to post Share on other sites
Graham Posted May 11, 2016 Report Share Posted May 11, 2016 Paul afraid to say if your engine is for a GT6 then it will be 2 litres not 2.5 litres that it should be ATB Graham Sorry I should have qualified that comment if its a standard GT6 engine then it will be a 2 litre, but it is possible its been worked on and converted to 2.5 litre. If its a 2 litre engine the stroke will be 3" if its a 2.5Litre then it will have a 3.7" stoke have a look at https://en.wikipedia.org/wiki/Triumph_I6 ATB Graham Quote Link to post Share on other sites
Andy Moltu Posted May 11, 2016 Report Share Posted May 11, 2016 The engine number just tells you what the block originally came from. What internals are in it now may well be vastly different to when it left the factory in a GT6. There were a number of different blocks used but to a large extent the differences are insignificant so cranks, cams, timing gear, sumps, engine plates etc can be put into the different blocks. As has already said a 2.5 is a 2L with a longer stroke crank rather than a different bore. Swapping a crank alone would affect the compression ratio so that had to be factored in and the appropriate head and internals have to be used. Quote Link to post Share on other sites
Paulsb Posted May 11, 2016 Author Report Share Posted May 11, 2016 (edited) panic over,it turns out its a cc engine number its not the one it left the factory with according to the heritage certificate but i can live with that,thanks for the replies though.heritage certificate states number as...cc81936-he but actual number is cc 28835-he from 1969 i think; . Edited May 11, 2016 by Paulsb Quote Link to post Share on other sites
McMuttley Posted May 12, 2016 Report Share Posted May 12, 2016 Maybe there should be a new topic started, as in 'Who's now got my engine' my long since departed is TS-26180-E Quote Link to post Share on other sites
Paulsb Posted May 12, 2016 Author Report Share Posted May 12, 2016 Something has just occured to me so another question,will i have any problems i wonder when i apply for a uk logbook because of the two engine numbers.? Quote Link to post Share on other sites
GT6M Posted May 14, 2016 Report Share Posted May 14, 2016 Simples, Ask for 2, M Quote Link to post Share on other sites
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