Can you identify this block??

My buddy is selling it for $600 OBO but I want to identify it first..It's been rebuilt and told it's a 215 block and all aluminum,but the only casting number I could get was off the intake (588239) because my camera fried out..

 

Looks like an Olds 215. I just picked up a Buick version yesterday. The Buick has nailhead style valve covers. Is there anything stamped on the pad just under the front of p***enger side head? a Vin # is supposed to go there, but mine is blank.

 

<CENTER>OLDS AND BUICK 215
The Buick version and the Olds version</CENTER>
Olds engines can be identified by their angled 5-bolt valve covers; Buicks have flatter 4-bolt covers. Pontiacs used the Olds versions. The late British Rover motor is based on the Buick, and except for different accessory mounting bosses on the cylinder heads, it is considered universally, dimensionally, and functionally interchangeable with the Buick design. Except the imported parts are quite expensive.
Olds cylinder heads are bolted to the block using six bolts per cylinder, Buicks use only five bolts. The extra Olds head bolt also retains the Olds rocker shafts. Valve train pieces from the pushrods on up are not interchangeable between the two versions. Buick blocks don't have the extra head bolt hole drilled in them, and the casting has insufficient thickness to add it. For this reason, an Olds head cannot be installed on a Buick block, although a Buick head and its ***ociated valve train components will bolt on an Olds block using only five bolts per cylinder. Head bolt holes are blind, water jacket seepage from the empty hole is not a problem.
Combustion chamber design also differs, with the Buick using a slightly more open-type design. The Olds head runs better on low-octane gas, but the Buick has only one type of cylinder head, varying compression by changing piston design. Olds, uses only one piston, altering compression by varying combustion chamber volume.
Olds had a unique valve-train not shared by later Olds engines, while the Buick version gave birth to later Buick V6's and V8's, parts for the Buicks are much more plentiful than for the Olds. Buick had greater production numbers, out numbering the Olds by 3 to 1

 

I'll go check..The block is an Olds 215...Two numbers I found on the block itself..The first set of numbers are 7923JB and the second set is
CFD-PM7
193724
T

Head Casting # SO 49562
Intake Casting #588239

 

Found another one..HI91352

 

Found out it might be a Buick now..

 

Got the info from a guy over at a Buick forum..It's a 215 Buick Hi Compression Block made in 1962:high output 1962 Buick 215. stock spec was 190hp / 235lbft and 11.0:1 compression

 

I hope it's not a Buick block, if it is someone has just stuck some Olds heads on it. It may be possible, but I've never heard of anyone drilling and tapping a Buick block to fit the Olds heads. As Wild Turkey said earlier in his post the Buick heads look similar to a "nail head" arrangement. I've got two in the garage that I've had for over 20 yrs. Buick also made some 300 aluminum heads that will bolt to a Buick 215. They have bigger valves but even larger combustion chambers which lower the compression.