Engine cranks, but no start. Unsure of the problem.

[Rusty Nail]

Where'd that guy go?
lol
It was that damned nut behind the wheel!

 

[Rusty Nail]

Dudes..i played Eddie Rabbit and everything!
Dunno why he ran away but it's regrettable.
NOW WE'LL NEVER KNOW!

 

[Sad Sack]

@Cj1234

Please post an update, cliffhanger theater is killing us.

 

[JBswth]

I have a 78 Chevy c10 with a 350 rebuilt sbc in it. Engine cranks very slowly but never wants to turn over. I messed with the firing order and distributor before this problem, I fixed it and made sure everything where it’s needed to be. I’ve double checked grounds, they’re good. I have a feeling that it’s my starter but again not sure. Everytime I crank, it’s slow, and my battery will drop down to 9v. Also when I crank and spin the distributor it sounds like it’s about to start but doesn’t. What else can it possibly be? Anything I should look at?

The fact that you just installed a fresh engine says that the first thing you should check is if the engine turns freely or not by hand. Sounds like you might have a tight bearing or two. If it doesn't, you need to pull the pan and check each one, one at a time. If any are tight, it will be obvious by looking at them.

J. B.