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JD G head ?

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Travis

11-04-2001 09:54:24

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I have a 47 G I want to have the head plained down while I have it reconditioned.....I have stock crank and rods. I am using M&W .090 over pistons..how much can I shave off with out having problems..and how much power will I gain...thanks

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burns

11-05-2001 06:19:00

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Re: JD G head ? in reply to Travis, 11-04-2001 09:54:24

If you want to go to the extreme, you can mill the head down to where the last cut will touch the economizing browel around the intake valves. As far hp, you won't see a significant gain (couple-three) but you will benefit from a little higher compression.

My G

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Gman

11-04-2001 18:41:25

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Re: JD G head ? in reply to Travis, 11-04-2001 09:54:24

Travis it will be difficult to tell,the tractor is 50 yrs old and chances are it has been milled before when a valve job was done. If you get compression to high you will have to use premium fuel to keep it from pinging ,those M&W pistons will get it on up there,I got a GM with the MW pistons and I can handle three fourteens easily in third gear and maybe fourth. Gman

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