[Tom Wells]

justushdw,

As far as I've been able to find, the difference is that the CJ/SCJ block has 4-bolt main bearings; otherwise the external markings may not tell you anything.

I did find this quote: "DOVE-A blocks produced in the Dearborn foundry are the only ones cast with extra thick main webbing to allow for the factory instalation (sic) of 4 bolt main caps."

And: "C8VE,C9VE and DOVE blocks all have a narrow pan rail."

If there is a CJ/SCJ block from any other year(s) (except D0VE-A that is,) it's unlikely it has 4-bolt main caps.

The CJ for 1968 was an FE. The 385 series CJ appeared in 1970; the 4-bolt main option appeared in 1971. (Unless there are other sites that differ LOL)

The short answer is the 4-bolt main D0VE-A is the CJ/SCJ. All the other blocks are pretty much similar to each other except the truck blocks, labeled D9TE, which have cylinders that are 0.2" deeper toward the crankshaft. The latter are considered by some a little better basis for a stroker engine.

Hope this helps!

Tom