69 block, plus 91 700r4
Thread Starter
Junior Member

Joined: May 2000
Posts: 83
Likes: 0
From: Beale AFB, CA, USA
Car: 91 RS
Engine: 305
Transmission: 700r4
69 block, plus 91 700r4
Please if anyone can help???? i have been hearing some unwanted things like, i can not use my 91 700r4 with a 69 block because of the rear main seals are not correct, so there for i have to use a pre-87 tranny. The thing is, i have put an awful lot of time and money into my 700r4 tranny and it is setup to pull some stunts if you know what i mean
but what i would like to know, is there a kit that i can buy or something that i could do to get this tranny to bolt up correctly to this 69 350 block that i have????
Damn this motor swap is starting to kill me
guess that is what makes it so fun!!!!!!!!!!
Thanx
but what i would like to know, is there a kit that i can buy or something that i could do to get this tranny to bolt up correctly to this 69 350 block that i have????
Damn this motor swap is starting to kill me
guess that is what makes it so fun!!!!!!!!!!
Thanx
Supreme Member
Joined: Jul 1999
Posts: 5,183
Likes: 42
From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
I believe you just need the correct flexplate for the 2-pc rear seal engine, with the correct number of teeth to match the starter. Don't see why it can't/shouldn't work.
See if all three bolt holes are tapped for both style starters, that way it won't matter which flex plate you put on(153 or 168 tooth). You can then put a straight or staggered nose starter to match the flex plate. (I don't remember which goes with the small flexplate - staggered or straight?)
Scott
Scott
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