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question on correct engine in a 1951 chevy truck
#682773 Sun Oct 03 2010 03:39 AM
Joined: Feb 2002
Posts: 27
J
Wrench Fetcher
I have just bought a 51 chevy pickup truck. The engine # decodes to be 1949. Seller says no evidence of any engine change, all looks original in wiring, etc. He says these 216" motors came into warehouses and were stored there in great numbers and that many trucks were built with engines not made the same year the trucks were assembled. Does anyone have any information to validate or discredit what he told me?
thankyou for your time. Jerry whitfield North Carolina

Re: question on correct engine in a 1951 chevy truck
jerry whitfield #682778 Sun Oct 03 2010 04:27 AM
Joined: Apr 2006
Posts: 500
O
Shop Shark
No info here to discredit, but....
anything is possible.

What engine # was used to "decode" 1949.
Should be able to get month and day too.

Will you post the, date code casting # and the block casting #,
located near the starter.


-Tom

1950 Chevy 3100 w/ 1956 235
Re: question on correct engine in a 1951 chevy truck
Oilrag #682788 Sun Oct 03 2010 05:12 AM
Joined: May 2006
Posts: 8,490
L
Master Gabster
The number stamped by the distributor will give the OE application, in addition to model year.
From my own experiences, though, I have a hard time beleiving that a truck built in 1951 would havr a 3 year old engine put in at the factory. Most seem to fall no more than perhaps a month or two from the installation date.


Bill Burmeister
Re: question on correct engine in a 1951 chevy truck
LONGBOX55 #682795 Sun Oct 03 2010 05:45 AM
Joined: Jan 2008
Posts: 4,658
C
Shop Shark
I would also suspect a replacement engine. I lived during the days these things were used and it was common practice to go to a salvage yard and buy an engine that would fit. Heads cracked, blocks cracked and rods turned cranks blue. All of this called for going to a salvage yard for an engine. Engines were not cleaned up before they were installed like classic vehicles enthusiasts are accustomed to. Engines could be run for a few months and they look like they have been there forever. One of the tell tale signs I look for on a GMC is the rear motor mounts have castellated nuts. Grease monkeys seldom replaced the cotter pin. A missing cotter pin is an almost certain sign of a replacement engine. I'm not sure If Chev used a castellated nut or not.

Re: question on correct engine in a 1951 chevy truck
Oilrag #682921 Sun Oct 03 2010 11:01 PM
Joined: Feb 2002
Posts: 27
J
Wrench Fetcher


Will you post the, date code casting # and the block casting #?

KCAAi6629i is located behind the distributor on the block. Both times, the "i" could be a "1", cannot tell for sure, assume it is an "i".

GM48 (enclosed in a circle) with 8835253
with 26 stamped in middle under these numbers. and located underneath and to front of the distributor.
I hope someone can tell me what this decodes to. thankyou for your time. sincerely,
jerry

Re: question on correct engine in a 1951 chevy truck
jerry whitfield #682924 Sun Oct 03 2010 11:10 PM
Joined: Sep 2001
Posts: 29,547
ace skiver

Here are locations for engine casting codes and serial number. The date casting codes will help ID the head and block.


Tim
1954Advance-Design.com [1954advance-design.com]
1954 3106 Carryall Suburban [stovebolt.com] - part of the family for 49 years
1954 3104 5-window pickup w/Hydra-Matic [1954advance-design.com] - part of the family for 15 years
Z-series (54/55) GMC 350 (2-ton) COE [1954advance-design.com] - now part of Dave's family
- If you have to stomp on your foot-pedal starter, either you, or your starter, or your engine, has a problem.
- The 216 and early 235 engine are not "splash oilers" - this is a splash oiler. [chevy.oldcarmanualproject.com]
Re: question on correct engine in a 1951 chevy truck
jerry whitfield #682926 Sun Oct 03 2010 11:16 PM
Joined: May 2006
Posts: 8,490
L
Master Gabster
From what I can come up with, it's a 1952 216 engine out of a 3/4 or 1 ton. I coulnd't find the casting number, but there is a chance that you may have misread it, as cast numbers like that can be hard to read sometimes. The closest number I could find is 3835353, which is the '48-'52 216 casting. To get the exact date, though, you'll need to check the numbers cast at the passenger rear side of the block, next to the starter. It will be a Month/Day/Year format.


Bill Burmeister

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