Truck Grinding from the solenoid when turning the key to start?

I have a 1964 Ford F100 pickup truck that ran fine last night but this morning I went out to take it for a drive and when I turn the key the solenoid just makes a horrible grinding noise. I tried jumping it, charging the battery and the screwdriver trick and still just makes a grinding noise. Anyone have an opinion as what it may be?

Why does my car turns off after i ignite it?

I have Ford convertible from 2010. I would buy a newer one but they stopped manufacturing them in 2010 and I love that car. Anyhow as I wrote above after i ignite it it ignites fine, but then dies immediately and i have to ignite it again. It ignites from a button, not by turning keys in ignition. I will show it to car repair, but would be nice to know in advance what it could be. The battery was changed a few years ago, together with ignition candles? ( I don't know how they are called in english, those things which put a spark for car to ignite).

Is 10-15 psi to much?

I recently bought a 62 ford falcon, complete stock upgraded inline 6. With a rebuilt c4 from eagle transmission. There's not to much performance from the inline 6. So I bought a Mexican 74 small block Ford 302. And planned to rebuild it. So I bought a 89 5.0 block with the forged pistons and rods was going to keep the stock cam and crank from the 5.0 block. I was just going to throw everything into the 74 block and drop it into my falcon. Or would it be worth to buy a new cam and a steel crank? As I'm trying to achieve atleast 10 psi. 15 max.