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| | | | Joined: Mar 2011 Posts: 25 'Bolter | | 'Bolter Joined: Mar 2011 Posts: 25 | hi again I just got a inline 6 cylinder give to me the man said it was a 265 I looked up the block casting numbers 3835911 and head casting numbers 3835913 it states a 235 mfg from 1954 and 1955 there is a big difference in cam and oil flow even water pump .the serial number on the machined surface is c216743f55s cant find any references to this block serial number .block casting numbers are con 3 L214 and gm head has con 12 A35. trying to pinpoint year mfg .all help appreciated .
floye mungle
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | It is a little hard reading your post due to no capital letters, and odd placement of "."s, and long sentences. I think this is some help in IDing your 265 which is a 235. C216743F55S C = ? (might that be a number/digit?) 216743 = (should be seven digits) = 215743 out of that plant that model year F = Flint, MI plant 55 = 1955 first-series truck S = 235 engine in a 4000 series truck http://www.1954advance-design.com/chev-specs/1955-1st-Chevrolet-t-ser.pdfCON 3 = Conveyor #3 L214 L = 12 = December 21 = 21st 4 = 1954 (an end of the year block) C12 = Conveyor #12 A35 A = 1 = January 3 = 3rd 5 = 1955 What does this mean: . . . there is a big difference in cam and oil flow even water pump . . . | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | According to the serial number, it is a 235 from a First Series '55 1 1/2 ton truck. The "con 3 L214" casting number you found is the casting date, it breaks down like this; Con 3- Conveyor 3. That is the line then engine was cast on. L314- December,21st day, 1954.
Last edited by LONGBOX55; 09/12/2014 12:01 AM.
Bill Burmeister
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | The 1955-1st truck engine had the older higher-mounted water pump (as used on older 235 engines and all 216 engines).
3835911 was used on blocks from 53-55st trucks and Corvette 235s
3835913 was used on 54 and 55 heads
Last edited by tclederman; 09/12/2014 12:20 AM.
| | | | | Joined: Mar 2011 Posts: 25 'Bolter | | 'Bolter Joined: Mar 2011 Posts: 25 | hay thanks u all I read on line that a 55 had a larger cam journals and a larger water pump that the impeller fits in the block .I haven't taken the pump off but I am going to for rebuilding .the article stated also the55 had a full pressure flow oil system the 54 has a spray .all info on this is greatly appreciated .
floye mungle
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 |
I think that is right, cuz. The internal water pump started with 1955-2nd Task Force Chevrolet trucks.
What year truck is that engine in? If it is an earlier truck, that water pump is located in a location that reduces cooling efficiency and the fan blade might be touch the radiator or harmonic balancer (depending on the fan blade).
| | | | | Joined: Mar 2010 Posts: 10,272 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,272 | hay thanks u all I read on line that a 55 had a larger cam journals and a larger water pump that the impeller fits in the block .I haven't taken the pump off but I am going to for rebuilding .the article stated also the55 had a full pressure flow oil system the 54 has a spray .all info on this is greatly appreciated . 54 235s are also full pressure engines. They did have smaller cam journals than later engines.
Last edited by 52Carl; 09/13/2014 2:12 AM.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
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