flex plate

511/727- steel crank/6 bolt.

what sfi flex plate for bracket car.
I see the large round ones but know nothing whatsoever about them.
9 inch converter

any recommendations?

Thanks

B&M will be fine.

I run the B&M as well. Aprox 900 hp, no issue.
Doug

I use the Mopar brand for SFI, they only offer the one with the H.D. 11 inch bolt pattern with the larger 7/16 inch converter bolts in both 6 bolt 440 and 8 bolt hemi patterns
I've heard to many complaints on the B&M plates not fitting all converters correctly for me to try one
Maybe it was the converters, maybe not I've never heard anyone complain on the Mopar H.D. not fitting Mopar race converters of any brand

The Mopar ones as of late seem to crack after awhile - We had one crack and switched to the B&M - and yes you have to bench fit them first as they are on the tight side when bolting to the converter - I think the real issue is converter mounting lugs can vary just enough to make the difference - on both of the B&M's we use - we had to reem the converter holes a little - no problen since

I found this ATI high HP solution - but I would guess the converter has to be made for it- a dual bolt pattern - our new converteres came with this this dual pattern lug on them allowing for 8 bolts - but we are using the B&M hence the converter has one hole tapped to 7/16 at each lug while the other is 1/2"

B&M on my stuff.