Not Ranked
I believe the flat tappet blocks went to 91 and the rollers started in 92. I have read the roller blocks have a casting number of F4TE. The lifter bores are taller. The number should be above the starter. That sure looks like the pre 92 block.
The older blocks can use a standard base circle cam with after market link bar and lifters, or a small base circle cam with 302 HO roller lifters. So this may have the small base circle cam in it. You can check to see if a standard base circle cam was installed by turning the engine over by hand while watching the link bars. The bars should remain flat and not be pushed up at all as the lifter moves up and down. In looking at the pictures, the lifters that are up look like the link bar is flat like they are supposed to be.
Wayne
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