c4 trans simple questions

[88mudder]

thx baddad. Which gasket/flexplate should i use? The combo that came with the motor or the combo that came with my trans? right now im using the combo that came with the trans but maybe i effed up!

 

[baddad457]

Gasket? Or do you mean the block plate, the thin aluminum or steel plate that fits between the block and bellhousing? You have to use the one that fits the bellhousing. including the starter holes, this is what indexes the starter to the flexplate. The flexplate must also match (there are two sizes most used---157 and 164 tooth)If you were trying to use a 164 tooth flex in a 157 tooth bell, it ain't gonna go together, the converter is too big. The imbalance of the flexplate must also be correct for the motor (28 or 50 oz/in)

 

[88mudder]

there was a 160 tooth plate in there come to find out and the block plate was not the right one. Ordered all the correct stuff with the correct balance weight. I will let u kno tomorrow how it goes.

 

[88mudder]

well hell, im in bit of a struggle here. Are 302's not supposed to bolt to c4 transmissions? The bellhousing pattern is way off and will not line up to my 302. What the hell? Am i missing something that i didnt know? My 289 bolts right up to my c4!

 

[Mutant Pony]

'64 and older 289 used a 5 bolt pattern. As the c-4 was cast in 64 (hence the c4) that bellhousing was only used one year. I had a couple about twenty years ago.
If you could post a picture of the bell housing, We could tell you what is wrong.

 

[88mudder]

302 block pattern, 6 bolt

289 block pattern 5 bolt (previously had it bolted to c4 trans below)

c4 bellhousing (does NOT bolt to the 302 block pattern)

any bellhousings out there that will fit my 302 block pattern? Any advice is welcome here!

 

[baddad457]

Your 289 is a 5 bolt block. Ditto for the C4 bell. You just need a later bell to swap out with the 5 bolt. You'll also need a 157 tooth flexplate for the 157 tooth bell, the one you have now should be a 160 tooth flexplate

 

[88mudder]

Your 289 is a 5 bolt block. Ditto for the C4 bell. You just need a later bell to swap out with the 5 bolt. You'll also need a 157 tooth flexplate for the 157 tooth bell, the one you have now should be a 160 tooth flexplate

yes your correct. That bell in the pic is a 160 tooth. I have a brand new 157 flexplate laying in the garage.

 

[Captain Ledd]

yeah, as soon as you mentioned that the bolts didn't match up I had a bad feeling... Hope you can find one of those bellhousings...

 

[88mudder]

will this ultra bell work? I count 6 bolt holes then the 2 extra for the little studs hanging out for 8 total which matches my 302 block pattern. http://www.jegs.com/webapp/wcs/stores/servlet/product_10001_10002_44290_-1

 

[baddad457]

As long as it'll bolt onto the main case it should.

 

[88mudder]

thx for the help! Hopefully i can find a used one in the next couple days and i will let u guys know how it goes.

 

[88mudder]

found a newer bell off a foxbody mustang...157t..6 bolt pattern! Only 20 bucks with a torque converter! Getting it Friday and i will keep u all updated this weekend!

 

[88mudder]

got a 6 bolt bell off a foxbody mustang. Retained my 2500 stahl converter (not the foxbody converter...this might be my problem..) Bolted right up. New 157t flexplate. I go to put the motor in a i get all the bellhousing bolts started. After that, i go to try to line up the 4 torque converter studs and the flexplate isnt in far enough. The studs line up perfect but just wont poke through the hole. Seems like the torque converter studs are too short. What is the problem here? Should i try to pull back on the TC? My 2500 stahl converter isnt as fat as my foxbody stock converter so im assuming this is probly the problem.

 

[baddis]

is the bell housing tight against the block?