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Old 08-24-2012, 08:36 AM
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Engine suffix code

I am replacing the motor in my blazer and i found a 4.3 local for sale but the person who is selling it is not sure whats its from. I have the stamping off the from of the block it's ( T0104UHN or T0104UHW or t0104UHH ) the little dots are hard to read. I called my local Chevy dealer but they where not any help. I would appreciate any help


Thanks Mike

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Old 08-24-2012, 09:14 AM
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Engine Suffix code

Here is a site to check your numbers. http://www.nastyz28.com/chevy-engine-code-stampings.php
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Old 08-24-2012, 11:49 AM
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Quote:
Originally Posted by cdminter59 View Post
Here is a site to check your numbers. How to decode Chevy Engine Codes
Thanks.. I have seen this one already and it really for older motors. what i am looking for what the motor came out of with the t0104uhh or t0104uhn
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Old 08-24-2012, 08:54 PM
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Quote:
Originally Posted by 81malibu350 View Post
Thanks.. I have seen this one already and it really for older motors. what i am looking for what the motor came out of with the t0104uhh or t0104uhn
Page to ID Chevy castings/engines, etc: http://www.crankshaftcoalition.com/w...asting_numbers

UHH:
1981; 350cid; 165hp; RPO LS-9; 4bbl; C 20; Truck/Van

UHN doesn't show up. Take a look at the casting date to see if it coincides w/the UHH suffix above.
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Old 08-27-2012, 07:09 AM
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Quote:
Originally Posted by cobalt327 View Post
Page to ID Chevy castings/engines, etc: http://www.crankshaftcoalition.com/w...asting_numbers

UHH:
1981; 350cid; 165hp; RPO LS-9; 4bbl; C 20; Truck/Van

UHN doesn't show up. Take a look at the casting date to see if it coincides w/the UHH suffix above.
Its a 4.3 v6 from a s-blazer and not a small block v8
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