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05-28-2022 #1Registered User
- Join Date
- May 2019
- Posts
- 80
Th400, 2:73 rear end torque converter input
I have a mildly warm Pontiac 455 with a RAIV Cam @ ~ 450 hp. The car has a TH400 and a 12 bolt 2:73 posi rear, 28" tires and weighs 3600#'s. The car will see a lot of mixed highway/city use and is just a driver car, will most likely never see the track. At some point down the road I will most likely be throwing a gear vendor behind the th400. I do not currently have any interest in installing a 2004r or 4l80 in the car, I like the th400.
I have not driven the car yet with the current setup and it still retains the factory torque converter, which I am sure will be a bit of a bore with that rear gear ratio. I am looking for input from the experts here about a recommended converter setup that will be fun, street manageable and not create heat generating issues while driving. I know the consensus will most likley be to change the rear gear setup but it is not something I want to do.
Input from those in the know is much appreciated, TIA
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05-28-2022 #2