Thread: 350 Won't Spin

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you have a bunged main journal. ( best guess )

as previous post said, you need to continually spin your motor during assembly to catch such problems in the future.

Did you check piston to head clearance? With high comp. there could be interference. Even a valve clearance thing could cause it.
Did you lube it well? Check ring end gaps? So many unknowns, hard to diagnose at a distance.

Like it has been said it is had to say from this far away.
Did you install the rods backwards??

Well we got it to spin the other day, I think we just didn't lube the cylinders enough, and when my friend painted the lifter valley he didn't clean the excess paint out of the lifter bores, so there was some pretty good stickage there also, do you think it may need one of those high torque starters because the one we have still turns it over real slow almost like the battery is dead, the ring gaps are correct and the piston to valve clearance is also good, we are going to prime it real good tommorrow and see if we can't get it to fire.