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JD A motors

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a puller

04-07-2003 20:01:29




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what kind of power do you people have out of your JD a's and what do you have for a head, bore, and stroke? Compression? we have an A that has 5.545 m&w's and 7.25" stroke (54 hp.) Just curious and wanting to build a bigger tractor for pulling that is still an A or G.




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AAA Puller

04-08-2003 20:56:51




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 Re: JD A motors in reply to a puller, 04-07-2003 20:01:29  
6"bore X 8.75" stroke, Jerry's head, bored carb, 9.5:1 compression getting 82hp@ 540, and 90@ 620 pto rpm



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lynn

04-08-2003 17:03:42




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 Re: JD A motors in reply to a puller, 04-07-2003 20:01:29  
a puller..36a with 5 7/8 x 8 3/8 9.5:1 71hp..46a jerrys head and manifold 5 3/4 x 8 9.5:1 63hp..38a jerrys head and manifold 5 5/8 x 8 11:1 59hp..all at 540 rpm..lynn



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A PULLER

04-08-2003 16:07:31




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 Re: JD A motors in reply to a puller, 04-07-2003 20:01:29  
My A is 6 3/8 bore and 9in. stroke and its gettin 78hp at 540 rpm. runs real good.



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