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Tractor Pulling Discussion Forum

bigger valves in head

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LIVIN LUCKY

08-22-2007 15:22:23




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where can i send my farmall m head to have bigger valves put in and have air flow opened up




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superh

08-24-2007 18:51:56




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 Re: bigger valves in head in reply to LIVIN LUCKY, 08-22-2007 15:22:23  
Gary Baker



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turbos10

08-22-2007 18:53:11




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 Re: bigger valves in head in reply to LIVIN LUCKY, 08-22-2007 15:22:23  
I went down this road and really came up with the decision that it did not make sense. The problem is that the stock valves are severely shrouded so this is only increased with valve size unless you grind out around the chambers. With the cracking issues on these heads in the chamber area, this did not make sense to me.

I also looked at porting and did not come up with much room for improvement there. Those heads kindof are what they are other than touching them up if they have some casting flash. Someone with a flow bench might be able to make progress, but there are no intuitive improvements like standard bowl porting on auto heads.

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