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Old 06-11-2003, 07:54 PM   #1
craigg1
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Engine Decoding

I have a 69 GMC Pickup I bought about a week ago. Im trying to figure out if the engine is the original engine.....and also im not even sure if the engine is a 327 or a 350.

Here are some of the numbers I have found on the engine of the truck.

K06 20 TKF
C51158993
3970010

Also, my VIN on the truck is

CE10DBA17720

Any answers would be greatly appreciated. Thanks.
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Old 06-11-2003, 08:17 PM   #2
special70gmc
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www.mortec.com 3970010....302.....69....4...Z-28 Camaro
3970010....327.....69....2...Trucks and industrial
3970010....350...69-80...2 or 4
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Last edited by special70gmc; 06-11-2003 at 08:20 PM.
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Old 06-11-2003, 08:38 PM   #3
JimKshortstep4x4
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Talking

According to the suffix code, (TKF) the engine is a 350 and came out of a 75-78 van or bus. Usually the 010 castings are 4 bolt mains, but they don't have to be. It should be a good engine but it is not original according to the suffix nujmber.



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Old 06-11-2003, 09:23 PM   #4
bigjimzlll
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1978 TKF 350 van & bus L LS9 165 4 C-10 & 1500
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Old 06-11-2003, 10:03 PM   #5
craigg1
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Thanks for the responses guys.
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