Engine How To Identify Blocks

[Black Stampede]

I recently obtained a block which I am told is a dss 306. I have been informed by a friend that dss does not make their blocks and it is either a shp dart block or a boss block. Regardless my main concern is that it is in fact an aftermarket block and not a stock block. Can anyone tell me what I can look for on the block to confirm that it is at least not stock and then which dss block it may be? I greatly appreciate it!

 

[revhead347]

Do you have the oil pan off? Any aftermarket block worth a crap is going to have 4 bolt main caps on #2,3, and 4. DSS very very rarely if ever uses aftermarket blocks. They are a engine remanufacturing assembly line, and rarely do one off engines. If the engine came from DSS, you can be pretty certain it's a stock block.

Kurt