I stepped out into an unknown direction so I need some help if anyone here’s knows of a site. I bought what I think is a 429 super cobra jet block and heads. I’ve got a friend that knows enough about any engines to at least give me that information. Does anyone know enough that could point me in the right direction to decode these parts before I jump out and price these?

Might try
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GOOGLE IS YOUR FRIEND

TorinoCobra.com is the best place to ask.

FWIW, the SCJ didn't have its own block, though SCJs had 4-bolt mains, as did 1971 CJs. No such thing as SCJ heads other than they were tapped for pushrod guide plates due to the solid lifters.

Thanks