im swapping out motors in the car now (302) and the old motor was a '88 lincoln and now im using a '77 ford. went to bolt the bellhousing up to the new ('77) motor and realized that the flywheel is smaller then the old one and now the holes wont line up on the torque converter. My question is, would it hurt to swap out the '88s torque converter for the '77s even tho the '77s is smaller. Both motors had a c4 behind them thanks bob
Good question I have a similar problem just have not got to finishing my swap yet. Be interested to read an informed response. I think Chevy's can have the same interchange suprises as well! Come on you tranny guys you all can not be at Bonneville.
the '88 torque converter is a lock-up type, the '77 is not. the '88 trans you have; IF it looks like a c4, is not actually a c4... its a lock-up version of a c5. bellhousing depth, front pump and torque converter are different between c4 and c5. however, you said it came out of an '88 lincoln, which would have used an AOD instead. AOD's would have a different torque converter pattern as you seem to indicate. post pics if you can. c5's were used in v6 t-birds & cougars as late as 88
yes, 66stang is correct. 50oz imbalance started production 11/82-up. one more thing to watch with this stuff
You can get the 164 and the 157 tooth flexplates in either weight configuration. I think that the Bell housing and Flexplate I have in the classifieds go together, but youll want to do the research b4 buying either, but Im not for sure, you'd have to do the research. FWIW, You have to get the flexplate that has the balance weight to your crank and balancer.
Oh I know, just wanted to clear up any possible confusion since SlowandLow63 said he would just swap flexplates from one engine to the other, even though they have a different imbalance. Least that's how I read it, sorry for any confusion.
Ya I must've had an out of body experience. I just read my post and said WTF!?!?! I think what's going on is he had an '88 motor that would've had an AOD behind cept he got the car having a C4 behind it. So it should have the correct flexplate and yes, be balanced to 50oz. I think his issue is still 157T vs. 164T in which case he needs to buy the correct plate (164T, 28oz) for the '77 motor. Provided of course this is the actual situation and BoBOhi0 here isnt fooling us on what trans were behind each motor. Though I didn't know there was a difference in bolt patterns between the 2 flexplates. Maybe I'm still way off base, who knows.
ok i found some info online about different years of c4's, and between a 10 year gap ford decided to expand the converters bolt diameter by almost an inch in length. So I took the converter/flexplate/balancer from the '77s motor and threw it in the c4 i already had in the car and everything bolted up great. So hopefully today i'll be able to get it fired up and if it shakes like a mofo then we know our answer LOL
yeah i swapped convertes, along with the flexplate and harmonic balancer...that way i knew everything was the same weights and so hopefully it stays in balance
Wait so what balancer with what motor with what flexplate? If the motor is the '77 you need to have the '77 balancer, crank, and flexplate. Otherwise your out of balance. The '77 is 28oz and the '88 is 50oz, I completey overlooked that in my first post.
So then you have a 1988 crank balancer and flex plate an engine with a 1977 crank? If so, it's not going to work right as the two cranks are balanced differently and need the matching balancer and flex plate.
That what it sounded like to me, lemme call him to make sure. I think wer are getting lost in translation here.
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