340/904 flex plate

[73 gld dstr]

Hey guys
I'm putting an externally balanced 340 in my 73 duster with a 904 transmission and needed some advice on a flex plate. I understand that b&m discontinued this product and I would rather not put weights on the converter incase I swap motors. Help would be much appreciated!
Thanks y'all!

 

[crackedback]

I think this is the one you need. TCI may make one as well

http://www.summitracing.com/parts/BMM-10235/

Measure the bolt circle diameter on the converter.

 

[73 gld dstr]

I believe that one is for a 727. But thanks for looking!

 

[crackedback]

That's why I mentioned measure the bolt circle on your converter. The applications on that site have both circles listed.

You aren't going to likely find a listing for a 904 behind a 340, because they never built one!

 

[crackedback]

As long as the converter bolt circle and balance are correct, they work.

I use the one that says it's for a 727/360 combo on a 360/904 so go figure.

Look at 10231, it says it works for both 904 and 727, what's that suggest? It's the same flexplate design as the 10230 except with 8 bolt crank attachment instead of 6 bolts.

Call B&M and ask them. They no longer make the 10235.

Good luck

 

[blue73duster]

http://www.summitracing.com/parts/BMM-10239/

robbed link from a few posts down from yours, Mancini has them also

 

[crackedback]

http://www.summitracing.com/parts/BMM-10239/

robbed link from a few posts down from yours, Mancini has them also

That's a 360 plate

 

[blue73duster]

That's a 360 plate

ahh,,ok,,,, I thought they interchanged (340-360)
externally balanced. learn something new all the time