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Tractor Pulling Discussion Forum

450 farmall gas head

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54supermta

12-16-2007 05:21:10

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would like to know how many thousands you can shave off head

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super mta puller

12-17-2007 10:36:44

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Re: 450 farmall gas head in reply to 54supermta, 12-16-2007 05:21:10

Dont screw up a good head.A 450 gas head will help quite a bit stock the little you will gain by milling is not worth it.Spend a little extra and buy custom pistons and get the compression you want.Besides the hundred or so you save by not milling will help with the pistons.

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ChadS

12-16-2007 09:51:03

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Re: 450 farmall gas head in reply to 54supermta, 12-16-2007 05:21:10

Measure the thickness at the triangle water ports. Chad

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ChadS

12-16-2007 09:21:13

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Re: 450 farmall gas head in reply to 54supermta, 12-16-2007 05:21:10

Some places epoxy works, some places it dont. One time, I had a 8060 milled .200, put it on, and ran it for about 3 minutes, pushed the flat area of the head thru the exhaust when it let loose. Huge chunk broke out from being too thin, and it was about .125 thick,,, Milling the heads down alot, you may need to epoxy around some of the triangle ports to put the area surface back into place, they get wider as the material comes off and too much, might start leaking.

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ChadS

12-16-2007 07:45:01

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Re: 450 farmall gas head in reply to 54supermta, 12-16-2007 05:21:10

Leave behind at least .300 left over, and whatever is beyond that, can be removed, but not recommended to go past the .300 thick point of no return. ChadS

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Charles E. McNelly III

12-16-2007 09:10:58

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Re: 450 farmall gas head in reply to ChadS, 12-16-2007 07:45:01

Hey Chad, I thought that"s what epoxy was for :)
Charles

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54supermta

12-16-2007 09:29:36

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Re: 450 farmall gas head in reply to Charles E. McNelly III, 12-16-2007 09:10:58

was told 180 to 200 thousands was no problem

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Charles E. McNelly III

12-16-2007 09:39:46

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Re: 450 farmall gas head in reply to 54supermta, 12-16-2007 09:29:36

Under normal compression ratios it might be fine. If your running pistons with some serious steps like most do, I'd roll the dice and have fun.
Charles

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