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Old 08-18-2010, 06:19 PM   #1
72cheyenneman
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'72 Cheyenne 350 Cylinder Heads #s

Does anyone know what the cylinder head GM number was on a '72 C-10 Cheyenne 350 4-bolt main? Or, how many GM numbers on heads were there? I was told that there are different sets of heads out there with different numbers. Thanks
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Old 08-18-2010, 06:50 PM   #2
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Re: '72 Cheyenne 350 Cylinder Heads #s

There are alot of different heads that fit the small blocks. The heads won't determine if you have a 350 4 bolt main. I will guess there are at least 10 different castings that were used for the 350 engines.
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Old 08-20-2010, 09:51 PM   #3
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Re: '72 Cheyenne 350 Cylinder Heads #s

Here are a couple pictures of the casting number. Let me know what you think they could be:

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[IMG][/IMG]
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[IMG]http://[/IMG]
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Old 08-20-2010, 10:58 PM   #4
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Re: '72 Cheyenne 350 Cylinder Heads #s

Hit them with a wire brush and tell me what you think the numbers are and i will try to look them up for ya...
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Old 08-20-2010, 10:59 PM   #5
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Re: '72 Cheyenne 350 Cylinder Heads #s

Helpppppp. Pleaseeeeeeeee!!!!!!!!!!!!!!!!!!!
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Old 08-20-2010, 11:09 PM   #6
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Re: '72 Cheyenne 350 Cylinder Heads #s

Try is a link
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Old 08-20-2010, 11:12 PM   #7
72cheyenneman
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Re: '72 Cheyenne 350 Cylinder Heads #s

They could be 3888893 or or they could be 3998993.what do you think about them?
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Old 08-20-2010, 11:34 PM   #8
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Re: '72 Cheyenne 350 Cylinder Heads #s

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Originally Posted by 72cheyenneman View Post
They could be 3888893 or or they could be 3998993.what do you think about them?
OK, 3998993 comes up as 1969-1974 307 or 350. Used for a truck or car, light duty.
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69 swb 4x4 project (in progress)
70 c-10 lwb texas truck
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70 swb (wifes)
70 jimmy camper
71 K-5 factory 2wd
71 cheyenne 4x4/tach/posi/ plow rig
71 Cheyenne20 BB, buckets, tach, tilt, 4 speed
72 jimmy CST wyoming rig
72 jimmy Colorado rig
72 lifted texas 4x4 3/4 ton burb
65 fury conv. 383/auto
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Old 08-20-2010, 11:47 PM   #9
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Re: '72 Cheyenne 350 Cylinder Heads #s

Thanks To Much...I think it is 3998993 and is it possible to find one on this site?
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Old 08-21-2010, 12:24 PM   #10
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Re: '72 Cheyenne 350 Cylinder Heads #s

Prolly just a run of the mill 1.94 head. Not many stock "performance" heads on trucks.

Gary
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