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1948 mm
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 Posted: Wed Aug 29, 2012 4:18 pm Post subject: high compression heads |
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I was wondering what heads have the highest compression ratio for a 403 gas engine I know about the 10A4213 and the GE30J just wondering if there were any others. Thanks
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larry Mi
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Joined: 01 Nov 2009
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| Posted: Wed Aug 29, 2012 4:21 pm Post subject: Re: high compression heads |
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Might look around here
http://fiorelli.tripod.com/index-5.html
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pplowboy
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| Posted: Thu Aug 30, 2012 8:10 am Post subject: Re: high compression heads |
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I have a set ge30t on mine
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MMEd
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Joined: 13 Dec 2004
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| Posted: Fri Aug 31, 2012 7:07 am Post subject: Re: high compression heads |
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On a more or less stock 403, Head Compression is as follows
GE30T / 10A4207 Highest - maybe about 12:1 ?? - dont have numbers but I would guess too high for anyone to run on gas
GE30P / 10A4206 10.85:1
GE30J / 10A4213 9.9:1
GE30M / GE30Z / 10A4210 9.1:1
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pplowboy
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| Posted: Fri Aug 31, 2012 5:27 pm Post subject: Re: high compression heads |
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This our gtb, in 7500 lb. Class, peeper goin off for 5mph. Class at 200ft in first gear.... ge30t. On it.. runnin on 98 octane.. copression can run lot high .lol u have to higher octane.maybe deisel head gaskets.. lol i now of higher than mine..
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pplowboy
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| Posted: Fri Aug 31, 2012 5:43 pm Post subject: Re: high compression heads |
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Having trouble up loading. Lol.
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mightymolinekid
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| Posted: Fri Aug 31, 2012 5:51 pm Post subject: Re: high compression heads |
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Here's plowboys tractor...gotta watch them Ohio boys I hear they got secret parts yard in Wisconsin lmao
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