Re: Can I use a 4L80 trans?
Second that on torque converter lock-up - it's like having a (tiny) 5th gear! My builder had an older style 82-89(?) valve body that supported the hydraulic lock-up kit, so no additional electrical wiring, brake light switch w/cruise control leads, low-vacuum switch or solenoid needed on my 700R4. I believe this is the kit he used:
https://transgo.com/product-details/...aulic-lock-up/
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1967 C20, 350 SBC w/Comp roller cam, 700R4 w/3.42 posi, PS, 4-wheel PDB, Old Air AC & GM Tilt column.
Last edited by tim_mc; 06-19-2021 at 11:12 AM.
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