We just pulled the stroker motor off the engine stand to put in the car and i thought we should check the bellhousing to see if it was lined up correct and the crank will not spin 360 degrees around. it hits the same spot either way you spin it. it probably spins about 345 degrees from shere it stops around the other way until it hits.
i didnt build the motor a local race engine builder built it but i cant imagine this is normal? almost seems like one of the rod bolts or crank is hitting. its a 440 block stroked to 500"
any ideas?

Take it back....Wonder what else he missed...

Make sure the flex plate bolts are all the way in the convertor and the convertor is all the way on the input shaft.

would it turn over on the stand before y'all put it in the car?

Clearance to starter?

The rods are hitting the oil pick up tube

I would think it was external, maybe a bolt in he flex plate to long, also harmonic balancer pulley bolt might be hitting. Unless you installed some internal parts after you got it from the engine builder. Did you install the heads? If so maybe the engine builder put a piston/ rod or both in backwards and a valve is hitting.

Agree with rods hitting the oil pickup. The last thing that was probably done after assembly was putting in the pickup and then the pan. Bet they didn't spin the crank after that.

Dont worry about it. Just bolt it down and burn rubber. A little clunking around never hurt nuthin.

its on the floor now. no starter or transmission yet or anything else bolted on outside.

put it back on the stand and pull the pan or take it back.

Since a local builder did the job, load it back up
and take it back to him without opening it up... let
him take care of it

yes i guess we are taking it back tomorrow. i unbolted everything on the outside and it still does it. that sucks my friend that owns it spent a fortune on it. its a blower motor.

Sure hope no one dropped a nut down the intake

I three the oil pick up I have not done that yet but lots have with the strokers. Last thing you put on is the oil pan and pick up.
We are assuming you used an internal pickup!

Hard to believe the engine builders wern;t turning the engine over all the time checking deck heights vavle to piston clearence, ect. i would think a 500ci blower engine would have atleast a single external pick up. I would have the whole engine looked over before giving anyone any $$$

A lot of good guesses, let us know what you find out.

If it was me, I would have just lost confidence in the engine builder, and I would let him know that. I'd call him and tell him that it won't turn over all the way, maybe take it and show him, and then tell him that you now have reason to doubt the quality of his work, and will be taking it somewhere else for a full inspection. you will deduct any cost from what you owe him. if you already paid him, then you could try to invoice him for it, or cancel the credit card payment in full, and work it out afterwards.

unless you are familiar with the builder, have done work with him before, or know his work from other buddy's or friends of yours. if it was my first time there, and I had no history with them, I'd be extremly suspect of the rest of their work.


but, then again, I had a machine shop hose me on SEVERAL items that I discovered during my build up.

For example:

A) I spec'd the pistons to be .005 in the hole. calculated it out, knowing the deck height, rod, stroke, compression height, etc. it should have been .005 in the hole. on mock up, they called me and said "it all spins pretty good, everything checks out great. by the way, this thing is zero deck" when iwas putting it together myself, I measured them, and they were not zero deck, they were where they should have been, .005 in the hole!

B) I asked them to mock it up for me and check piston to valve clearance, and tell me what length pushrods I needed. I ordered the size they told me I needed, and they were .500" too long! the valves wouldn't even close! (apparently they forgot to switch out the solid lifter they used during mock up, to a hydraulic lifter for checing pushrod length)

C) they said they put it all together and it spun around great. when I put it together, the crank wouldn't even move because the main bearings needed to be shaved to work with my crank

D) After lots of mis-communication, confusion, and lack of understanding on how I wanted it balanced, I fired them and picked up all my stuff. they quipped at me "by the way, that cam is no good. it won't make enough vacuum to shift your transmission" I reminded them that the flywheels are for manualtransmissions, flex plates are for automatics, and it's a mopar, there is no vacuum signal needed for the automatic transmission!


--there's more that I could go into, but, you get the idea

so, if they missed that one tiny thing (oil pick up--if that's what it is) ask yourself...what else did they miss?