Can anyone help me with casting number. Is it 140 or 148?
The way I read it is 14893630 the suffix is SNB.
I’m trying to get more info. I know it’s a 5.7. I think I think I found it’s from a 1987 Camaro. Would this be hyd roller cam? I’m looking at buying it and trying to find as much info as I can. Also the heads are center bolt valve cover but I don’t have casting number or a picture.

 

SNB is the suffix probably a 87 l98 just a guess. Stock should be roller cam

 

Casting # ends in 638.

It's a 350 from about 87 to sometime in the early 90s.

Looks like it may have been "rebuilt". If so, ANY AND ALL meaning that the stamping codes might contain, may well be lost. No idea what any of those codes means, myself; I find them utterly useless.

Most 638 blocks were originally part of L05 engines.

 

I forgot to add the guy who has it never used it and said he bought and that person said they pulled it out of an 87 IROC. I was hoping to help decifer to correct number and if it would’ve been hyd roller or not. I do know heads are center bolt valve cover ones. I have no casting number for them. The guy selling it doesn’t have a picture.

 

Please Post some more Images of the Stampings... or try to clean up the area where the Stampings are...
I can not see them completely/ clearly.

The Casting Number is clear enough to make out: "14093638".
=1986 - 1994 350ci Cylinder Block (Some Roller/ Some Not, Some 2-Bolt Main/ Some 4-Bolt Main).

Stamping #1 ??? :V0323SNB (V 03-23 SNB).
V= Engine Plant Location: Flint.
03-23= Date: March 23rd.
SNB= Engine Suffix: TPI, RPO: L98 with THM700-R4

Stamping #2 ??? :2HN23 _ _ 54.
2= Division: Pontiac
H= Year: 1987
N= Assembly Plant: Norwood
23_ _ 54= Six Digits of the Vehicle Identification Number (VIN).

 

Coming originally as a L98, it would have originally been a roller setup. Hopefully it still is.

What heads are on it?

 

I’m looking at buying engine so I don’t have anymore pictures nor can I clean the numbers. The only thing I do know is it has 2 bolt main. Guy did have a picture of bottom. He doesn’t have a picture of heads # and he’s not home til April 7. He’s a pilot. He bought engine for a truck he’s doing but never put it in and got something else.

 

I'm not sure how I can say this to you any clearer then.

Once an engine has been "rebuilt", ANY MEANING that might have once been available from those codes that are stamped on the BLOCK, is now GONE. You can take a 638 block with L98 stampings on it, put in a 929 cam (or worse) which is the old flat-tappet POS that came in 70s turds, slap on a set of 193 (TBI swirl-port) or 882 (70s smogger) heads, deep-dish 70s smogger turd pistons, and have ... a TOTAL TURD, with nice pretty "L98" "codes" still stamped proudly on the BLOCK. Nothing about those "codes" requires that the ENGINE be "rebuilt" back to an exact match with the "codes" on the BLOCK.

If you buy it you might get a L98 or you might get a turd or you might get something in between or you might get something better. Without more info - which is NOT available by posting pictures of "stamping codes" - you have NO WAY WHATSOEVER of knowing. Total CRAP SHOOT.

Adjust what you are willing to pay for it accordingly.

And that doesn't even BEGIN to account for the quality of whatever machine work was done to it, the choice of pistons and all such, and so on.

Frankly if the seller isn't willing to provide more info, I'd recommend passing on it. You certainly don't want to become the proud owner of a block that's been hack-jobbed to .060" over with flaws that can only be corrected by another overbore which is now IMPOSSIBLE, a set of heads that are GARBAGE, and so forth, just because you're mesmerized by a stamping code that says "L98".