Which transmission ?????

Have an '89 351w and want to stuff it in my 69.5. Towers are notched and all the other stuff. Only thing is, which transmission will will bolt up to the 351w ? I have a large bell c-4 but I'm not sure if it will fit in the tunnel. I have a small bell c-4 that needs a flywheel but I'm not sure which flywheel to buy. Will a 70's small flywheel work ? Or do I need a newer 5.0 style ? Do I need to change harmonic balancer ? :confused: :confused: :confused:
Thanks, Darrel

 

Doh!
It's too late to think this hard...
I just noticed you were talking C4 tranny.
Disregard

 

you might try http://www.mustangcentral.net/tech/c4.html i don't know about the 69.5 but a c-4 should fit in all the others with either a small or big bellhousing. you'll need to match the flexplate for the size and you'll also need the same size motorplate. the smaller bellhousing will give you a little more clearance for headers. on an 89 i believe you'll need the 50 oz. check out that website first, before you believe anything i tell you.

 

Pretty sure the 351W kept the 28.2 ballance even through the later years.

 

351w = 28.2 never changed it like the 5.0

 

yep, you guys are right. i should have read the link first myself. guess that's why i put the disclaimer for anything i might say.

 

Thanks guys !! Now to see if the larger bell will fit in the 69 1/2 .