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Old 03-19-2012, 09:52 PM   #31
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Somewhere on the passenger side if I remember correctly.

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Old 03-19-2012, 10:19 PM   #32
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It would be on the block not the heads correct?

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Old 03-19-2012, 10:27 PM   #33
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Get that head casting number if you found it.
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Old 03-19-2012, 10:32 PM   #34
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Ive been looking using this link...

Chevy Engine Codes

would that require taking it apart to see the code?
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Old 03-19-2012, 10:37 PM   #35
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Damn it is on the passenger side head.
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Old 03-19-2012, 10:41 PM   #36
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ok if im reading it right.. It's V1203UHX
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Old 03-19-2012, 10:50 PM   #37
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On the back of the engine there could be a partial vin. near where the bellhousing hooks.
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Old 03-19-2012, 10:54 PM   #38
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there was this number under the engine code... it went....

V1203UHX...... Then under that it was kinda faded but i think it was..
TB0505280
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Old 03-19-2012, 10:56 PM   #39
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Ok so you have:
V= Flint Built December 3rd, 1981
UHX 1981 350 165 4 con cab, a/t, A.I.R.
UHX = 1981 350 with 165 HP and a 4 bolt main,

Con Cap [not sure what that is]

Automatic trans, with air conditioning.
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Old 03-19-2012, 11:02 PM   #40
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165 HP? lol thats less then my 4.0!

That kinda sucks!
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Old 03-19-2012, 11:20 PM   #41
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I cant seem to find that second number metioned.
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Old 03-19-2012, 11:23 PM   #42
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I must of gotten it wrong. So 165 HP?? I'm going to have to do something about that.. Was hoping to just throw it in.. but i think i need some more power then 165HP
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Old 03-19-2012, 11:34 PM   #43
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Less HP but a lot more torque. Plus if all this info is right you have a 4 bolt main, which is a stong engine to build.

Im not sure that HP stated is correct either. One site said 185hp.
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Old 03-19-2012, 11:40 PM   #44
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Well I ordered these headers.. Maybe they'll boost it a bit?

Hedman Hedders 69640 - Hedman Street Hedders - Suggested Parts - SummitRacing.com

I think you actually suggested them to me.. Im going to run new exhast pipe all the way back. Maybe 2 1/2 or 3?
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Old 03-23-2012, 04:59 PM   #45
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Just put on the headmans and some new wires and plugs. I have to Get something to get the wires all cleaned up and away from the exhaust.


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Old 03-24-2012, 10:18 PM   #46
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Can anyone give me any info about this th350?? Im thinking its the newer model.. Is that the desirable model?


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