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| Minneapolis Moline Tractors Discussion Forum |
Topic: high compression heads
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| 1948 mm
08-29-2012 17:18:09
208.71.219.231
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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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| pplowboy
08-31-2012 18:27:46
70.194.12.141
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Re: high compression heads in reply to 1948 mm, 08-29-2012 17:18:09
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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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| mightymolinekid
08-31-2012 18:51:27
166.182.3.251
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Re: high compression heads in reply to pplowboy, 08-31-2012 18:27:46
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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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| pplowboy
08-31-2012 18:43:02
70.194.12.141
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Re: high compression heads in reply to pplowboy, 08-31-2012 18:27:46
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Having trouble up loading. Lol.
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| MMEd
08-31-2012 08:07:22
65.5.210.56
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Re: high compression heads in reply to 1948 mm, 08-29-2012 17:18:09
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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
08-30-2012 09:10:42
70.194.4.237
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Re: high compression heads in reply to 1948 mm, 08-29-2012 17:18:09
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| I have a set ge30t on mine
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| Larry Mi
08-29-2012 17:21:34
174.124.244.147
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Re: high compression heads in reply to 1948 mm, 08-29-2012 17:18:09
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| | Might look around here http://fiorelli.tripod.com/index-5.html
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