360 help

[themoparman73]

I need help. I bought a 1978 360 out of a motor home. The thing is, that my flex plate doesn't work or line up. The crank holes have 7 bolts. Is there a special flex plate? or I'm I screwed. I'm hooking up a 904 behind it. Any info will help. Thx.

 

[70aarcuda]

7 holes?....are they all threaded...actually 6 are probably threaded...

 

[BrianT]

I agree. There should only be six threaded holes in the crank and YES, unless your 904 came from a 360, you will need the special flex plate from B&M.