GM 1271089-1 10 2 or 10 20 In a 35 Buick Sedan

[Dons Boy]

Trying to find a block for my Dad’s car.  What does this number tell me?  This one has a crack in it. Thanks!

[rodneybeauchamp]

The crack may be repairable. Would need a picture of the crack and more information about the condition of the rest of the engine for others with this experience to chime in. Good luck! 

Rodney 😀😀😀😀😀😀😀

Edited August 21, 2022 by rodneybeauchamp
Extra information (see edit history)

[Larry Schramm]

Looks like the block was made in October, 1929.  You say it is from a '35 vehicle?  Must be a replacement engine.

[nzcarnerd]

Ned a pic of the body plate on the firewall to determine the model of the car. I assume it is an eight from one of the larger series? There were three different block sizes in that 1931-35 era.

 

Presumably looks like this when more complete? The plug cover is not fitted to this one

 

 

[Bloo]

I hope you find one, but I'm with @rodneybeauchamp, in that yours can probably be fixed. Depending on where the crack or cracks are (it's never ONE crack), it might not even be that expensive. Modern cold stitching, if possible on your crack(s), avoids the problems associated with welding a precision machined cast iron part like a block.

 

Welcome to the forum!
 

Edited August 21, 2022 by Bloo (see edit history)

[1939_Buick]

The number stamped above the cover reads as 29465?  That would put it as 1934-35 block.

With more photos (from a distance) others will be able to identify.

What is the bore x stroke?

As above the cowl data plate will tell us more.

[JayG]

1929 Buicks were 6 cylinder so not a replacement from 29.  What series is the car?

[Larry Schramm]

Then what does the 10-29 mean?

[JayG]

I assume those are month and day codes. I have a 35 block with 11 20 and a 34 block with 6 27 

[F&J]

6 minutes ago, Larry Schramm said:

Then what does the 10-29 mean?

 

 

casting date codes with only 2 numbers are always month/day.   Codes were only for factory reference to know exactly what day it was cast.   

 

 

also, the 2 brass fittings for the oil temperature conditioner would not be there on a small 40 series block, so it's a bigger series than a 40

[Dons Boy]

Thanks everyone for responding! I am just starting to dive into this . My Dad passed away and I don’t know a lot about where he was in process. He was going to rebuild it when he retired and he passed away a couple months before that. I will put more pics. I have info in boxes on it. I know it has a cracked block or head and is missing a horn trumpet. He belonged to a Buick club and may very well have been in this as well. 

Edited August 23, 2022 by Dons Boy (see edit history)

[JayG]

It’s a 60 series based on model number 64 on your tag.  That will narrow down what block you will need to find.  

[Buick35]

I have a 35 40 series Buick and it developed a very small leak in the water jacket.I sealed t with j b weld and so good so far.Anyway I have an odd request.Dose your car have any of the original window markings or"bugs" as they call them? I was going to get one made for mine and wanted to know what they looked like.I have a picture of a 36s but not sure if it's the same.Thanks

[Dons Boy]

I don’t know what you mean by bug, I saw in posts about it. Send a pic and I will look.

Edited August 28, 2022 by Dons Boy (see edit history)

[Dons Boy]

I don’t know what you mean by bug, I saw in posts about it. Send a pic and I will look.

[Dons Boy]

Here is a windshield that was in the car and it has the “bug”  it looks like a windshield but there is one in the car and this one has brackets??? Hope this helps. It has a little bit of distortion on it.