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FE Power Forums => FE Technical Forum => Topic started by: winr1 on July 19, 2020, 10:12:16 PM

Title: Fe mill with C4 trans .... JPT bell or COM bell
Post by: winr1 on July 19, 2020, 10:12:16 PM

Any run a C4 with a JPT bell or a modified COM bell ??

Curious as to what converter would be used


My JPT bell was modified to fit an 184 tooth FE flywheel

What flywheel would one run in a JPT bell if it was not modified ??

Does the converter need to be FE on the crank side and C4 on the trans/pump side ??



Ricky.

Title: Re: Fe mill with C4 trans .... JPT bell or COM bell
Post by: Jim Kramer on July 20, 2020, 12:19:32 AM

Ricky.. I used the C6 converter with my modified COM bellhousing. The C4 stator support is the same as a C6, And you can buy an adapter bushing to make the C4 input shaft work in the C6 converter. The COM bellhousing is .850 deeper than the C4 bell so the converter needs to be spaced back a like amount with fabricated spacers. Sounds kind of jury-rigged but I put hundreds of mid to low 1.40 sixty foot runs on mine with zero problems. If you need a decent 4500+ stall racing converter I have a couple......Jim Kramer

Title: Re: Fe mill with C4 trans .... JPT bell or COM bell
Post by: JamesonRacing on July 20, 2020, 05:57:52 AM

I have a JPT bell on my C4 and the standard 184T flexplate and C6 converter (with spline adapter) fit fine.

Title: Re: Fe mill with C4 trans .... JPT bell or COM bell
Post by: e philpott on July 20, 2020, 10:09:07 AM

The spline adaptor works if you want to use a C6 converter , they even have a spline adapter for a C6 converter in a AOD too

Title: Re: Fe mill with C4 trans .... JPT bell or COM bell
Post by: winr1 on July 20, 2020, 05:07:12 PM

Thanks guys !!

My JPT bell has been built up with weld on the bottom
The bottom and top have been milled, a 184 tooth flywheel barely fits

Will take a pic and post, curious as to why the modifications



Ricky.