P7 mopar nascar block

408 swinger said

Dodge Mopar R4 Race Block # P4532982 | eBay
Dodge Mopar P5 Head Casting, Semi-machined, No Seats and Guides, Single | eBay
Last pic in the block description is, uh-hum, "generic".

Click to expand...

Looking at the pictures above that P5 was the PST head for sure and the R4 block was the short deck block used in PST.