318 LA rebuild after losing a valve seat

What about running them with a 71 crank? Unfortunately I’ve done a lot of my purchasing backwards, without knowing my rods, cam, etc. Like the springs I bought weren’t big enough for my cam, and I had to have the guides cut (also due to the cam). I guess that’s the price I’m paying for being a novice. I’ll tell ya this, boy have I learned a lot for the next time.