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Joined: Dec 2006
Posts: 25
L
Wrench Fetcher
Wrench Fetcher
L Offline
Joined: Dec 2006
Posts: 25
The number on my GMC engine is located by the distributor.. it is
E24829283 c
I assume it is a 248, but need to know if it is a babbit bearing or modern engine. Can anyone tell me the year and answer the question about the bearings?
Thanks
Dennis

Joined: Sep 2001
Posts: 29,269
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,269

Dennis,

All the GMC 6 cylinder engines have the high-pressure oil lubrication system (insert rod and main bearings).

Here is some information on identifying the year of your 248 engine.

Here's some information on what the "E" preface on your engine serial number.

Tim


Joined: Dec 2006
Posts: 25
L
Wrench Fetcher
Wrench Fetcher
L Offline
Joined: Dec 2006
Posts: 25
Thanks Tim! However, I'm still confused. I had visited the first site you listed, and still can see how to decipher my engine year.

My number 24829283 c does not seem to be listed here: "Here is some information on identifying the year of your 248 engine."

What am I missing?

Thanks
Dennis


Joined: Sep 2001
Posts: 29,269
Bubba - Curmudgeon
Bubba - Curmudgeon
Joined: Sep 2001
Posts: 29,269

Dennis,

You code E24829283 is an engine serial number. You need block and head casting numbers and block and head casting dates to best identify your engine (the casting numbers are shown in the first link).

Here is a photo of casting codes locations by Rob English, from the oldGMCtrucks.com site - (manifolds' side of the engine).

Tim



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