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Old 04-25-2012, 08:48 PM   #2
3QTRTONS
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Join Date: Mar 2010
Location: Warren, ME.
Posts: 233
Re: Vin and Engine code help!!

Hi Nothinghead,
Based on your VEHICLE'S V.I.N. :
C=Chevrolet
K=4x4
U=305 V8
1=half ton
8=Blazer
9=1979
F=Flint, MICHIGAN
190942=Build #

The 305 motor that WAS in your Blazer would have one of the following suffixes: TYR TYS UTA UTB UYR or UYS

The 350 motor that IS in your Blazer could be from a vehicle that matches the codes you observed, I'm not very good with Engine Codes. I DO know that the "TKY" block designation was also in 1980 C/K Blazers also.

IMHO, the motor is NOT original to the vehicle. Doesn't sound like its bad news though, btw....
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