Buying Short Block

Hello Folks
I'll be buying this 318 short block. The seller said it's a 1985
He stated "This was a new factory warranty replacement but never installed by owner"
- What should I inspect for?

This plan is just a daily driver for 1973 Plymouth Scamp with A/C, P/S, 904 transmission, and 7.25 rear. I already have the following:
- Camshaft XE268H
- Seat harden ported 302 Engine heads. 1.88 x 1.60 Stainless valves 67-70 CC open chamber design. .509" lift springs (purchase from Aerohead)
- Gasket match 2167 Edelbrock Performance
- Edelbrock 1406 Carburetor
- 273 Adjustable Rocker and push rod
- ProComp distributor with PC-91 ignition coil.
- Hedman “block Hunger” exhaust 78506
- JEGS Performance Products 30500 Header-Back Dual 2-1/2" Exhaust Kit

Any advice would be greatly appreciated, since this will be my first attempt:

Thanks
Scamp