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#63594 07/28/2006 9:49 PM | Joined: May 2006 Posts: 119 Wrench Fetcher | | Wrench Fetcher Joined: May 2006 Posts: 119 | After looking at all the post on engine Id's I'm confused because not all reference sites show the same info. I'm hoping someone can help me.
I have a 1949 3100 truck. Numbers are as follows. Engine serial #LAQ276I65. Engine casting #3701481. Head casting #3701887. I think I have figured out this is a 235 c.i. with a 1953 head on a 1954 block. Is this a babbit engine or not? Can anyone verify and maybe tell me more info? Thanks for the help! | | |
#63595 07/28/2006 10:00 PM | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | If it has 2 nuts on top of the valve cover instead of 4 screws on the sides of the cover holding it down its a 216 or 235 babbited eng.
Also the 216s and 235 babbited had the side covers on the engine that go up through the spark plugs while the later non babbit engines stopped just below the spark plugs.
Dont know much about the numbers but someone else will explain shortly.
Jeff | | |
#63596 07/28/2006 10:20 PM | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | The engine number that is used as your VIN in most states is on a raised boss behind the distributer. Take that number and call 1-800-222-1020 to request your restoration packet from GM. It'll be free to you. It'll have more usable info about your truck than you can believe including the location & decoding of numbers.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
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#63597 07/28/2006 10:42 PM | Joined: May 2006 Posts: 119 Wrench Fetcher | | Wrench Fetcher Joined: May 2006 Posts: 119 | It has the 2 nuts on the top cover and the side cover stops below the spark plugs, so looks like a non babbit engine. Good start and I will check on the restoration packets. Thanks! | | |
#63598 07/28/2006 10:53 PM | Joined: May 2006 Posts: 119 Wrench Fetcher | | Wrench Fetcher Joined: May 2006 Posts: 119 | Guess I'm out of luck on the resto packets as you have to have the original VIN. Mine was reissued and isn't original. | | |
#63599 07/29/2006 12:00 AM | Joined: Aug 2005 Posts: 424 Shop Shark | | Shop Shark Joined: Aug 2005 Posts: 424 | According to the casting number source that I found, that casting number should be a 235 made for 1954 model year. | | |
#63600 07/29/2006 12:13 AM | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | Originally posted by fireout1:
Guess I'm out of luck on the resto packets as you have to have the original VIN. Mine was reissued and isn't original. That sucks.  Therein lies another downside, although not a major one, to not keeping the original engine.
Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
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#63601 07/29/2006 1:16 AM | Joined: Apr 2006 Posts: 506 Shop Shark | | Shop Shark Joined: Apr 2006 Posts: 506 | Catalog shows:
Truck - 1954-55.1 Block casting #3701481 with Head casting #3701887.
Head casting #3701887 was also used in 1953 with block #3701946.
Passenger -1953-54 P.G. Hyd., 2 water pump holes, Block casting #3701481 with head casting #3835913.
Passenger -1954-55 Std. Trans., solids, 2 water pump holes, Block casting #3701481 with head casting #3835913.
Crank forging for all above was 3701488.
-Tom
1950 Chevy 3100 w/ 1956 235
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#63602 07/29/2006 2:49 AM | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | Are you sure that the prefix on the serial # is LAQ? Could it actually be a G? The only LA code engines I could find listed are 216 passenger car for '53-with LAG being a Flint produced engine.
Bill Burmeister
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