Flywheel and bellhousing fit issues

[Fbird]

Hi all,
I am mocking up my bellhousing and getting ready for the Tremec to arrive later in July…hopefully. I want to show some pictures and was hoping I could get some information and insight before I pull out the grinder. I wanted to align the bellhousing to see if I need offset dowel pins or not.

Here is what is have.
2015 Ford Coyote
Ford performance M-6375-M50 flywheel
M-6392-M46 bellhousing
149285
Here they are.

The bellhousing bolts up perfectly to the coyote with out the flywheel in place. When I try to bolt on the bell it hits the lower half of the flywheel and will not seat.
149286

I took off the flywheel and then put the bellhousing in place and marked with blue marker where the edge of the bellhousing starts. I then took off the bellhousing and confirmed the clearance issues I am experiencing.
149287 see the blue marker.

I have confirmed I have the correct bell with LMR. Could I have the wrong size flywheel?It was the lightweight Ford performance model ordered through Jeggs. It is about 13.25 inches in diameter on the machined surface. It is bigger if you include the ring gear around it.

I am thinking I need to clearance the bellhousing to make it work. I would grind off material based on the blue line I drew earlier and a careful eye. Ford performance says some of the bellhousings will need to be modified slightly…it figures that this might be one of those “some models”.

Any thoughts my compadres?

T.Poe

[Norm B]

I am no Coyote expert and hopefully Paul, AKA edwardb, or the other experts answer soon but, before you do any grinding on the bell housing, I would make sure the flywheel is compatible with your starter and clutch.

Good Luck

Norm

[edwardb]

That's the right flywheel. I've used it a couple times. I've only used Quicktime bell housings, so can't comment on the aluminum bell from experience. But that is the part number listed in the Factory Five instructions. Check this out though. In the Gen 3 instructions, Factory Five notes slight flywheel interference I think in the same area you're noting. https://www.factoryfive.com/wp-content/uploads/2021/04/Coyote-Gen-3-Fitment-roadster-rev-1E.pdf starting at page 32.

[Fbird]

Thanks. I would have never thought to look at the gen 3 instructions for the gen 2. It appears that is what I am seeing and will need to clearance things a bit. Those instructions are much more detailed than the instructions I had. Clutch is what was recommended in factory five instructions and previous Edward B post so I guess that is the road I will need to take, but not today. It is a scorcher today.