Will switching to vac advance distributor mess up converter lock up?
Thread Starter
Junior Member
Joined: Nov 2012
Posts: 5
Likes: 0
From: St. Louis area
Car: 86 TA, 04 mazda 3
Engine: Just rebuilt 350
Transmission: 700R4
Will switching to vac advance distributor mess up converter lock up?
Im in the process of swapping in a 350 in my 86 TA on some what of a budget. My original CC distributor was broken during removal of the old engine and I was able to pick up a vacuum advance distributor on cheap and wanting to use it. I keep reading if you use a vacuum advance distributor you lose your torque convert lock-up but that's with a carb swap as well but im using the original intake and carb from the 305. Will I lose converter lock up with this distributor?
The engine is still on the stand so im trying to get everything straightened out before i drop the engine in a few weeks. Thanks for the help, this site has helped my greatly with my new project car!
The engine is still on the stand so im trying to get everything straightened out before i drop the engine in a few weeks. Thanks for the help, this site has helped my greatly with my new project car!
Last edited by Jeremy71504; Mar 30, 2013 at 09:00 PM.
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Will switching to vac advance distributor mess up converter lock up?
original CC distributor was broken
I keep reading if you use a vacm advance distributor you lose your torque convert lock-up but that's with a carb swap as well
but im using the original intake and carb from the 305. Will I lose converter lock up with this distributor?
I keep reading if you use a vacm advance distributor you lose your torque convert lock-up but that's with a carb swap as well
but im using the original intake and carb from the 305. Will I lose converter lock up with this distributor?
Thread Starter
Junior Member
Joined: Nov 2012
Posts: 5
Likes: 0
From: St. Louis area
Car: 86 TA, 04 mazda 3
Engine: Just rebuilt 350
Transmission: 700R4
Re: Will switching to vac advance distributor mess up converter lock up?
OK thanks for the help, I figured that would be the issue but i couldn't find a definite answer on the matter. I ordered a re manufactured CC distributor from classic industries for $120 so I wont lose torque converter lock-up.
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Will switching to vac advance distributor mess up converter lock up?
There are several ways of controlling lockup without a computer like the early non CC carb cars did
https://www.thirdgen.org/forums/carb...c-control.html
https://www.thirdgen.org/forums/carb...c-control.html
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
But putting a computer distributor back in is the right thing to do if the computer carb is going to be used.
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