Power Glide to TH350 Swap - Impala Tech
Transmission & Driveline Transmissions & Differentials

 
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post #1 of 2 (permalink) Old 08-20-2020, 07:09 PM Thread Starter
 
 
Join Date: Feb 2020
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Power Glide to TH350 Swap

Hello,
I have a '64 Impala (4 door), that came with a 327 and Power Glide. I put in a crate 350 and matched it with the TH350 trans. The flywheel (153 tooth) from the power glide did not work with the TH350. So I purchased a 168 tooth flywheel, and it does not sit properly on the original started I had. I purchased a new starter (part# 3510S) and when turning the ignition, there is nothing. Have anyone experience this, and is there a recommended starter for the TH350 with 168 tooth flywheel? I have looked at the mini starters, but don't know for sure which model of the mini starters to buy that will be compatible. Any help is much appreciated.


Big Brooks
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post #2 of 2 (permalink) Old 08-20-2020, 07:36 PM
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Join Date: Jan 2006
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Problem you have is the crate motor 350 uses a one piece rear seal crank with a smaller 3.00" bolt pattern on the crank. The older 327 and all SBC made from 1955-'86 used a 3.58" bolt circle. You need a 153 tooth flex plate off of a 1987 and up SBC to 2001 350. You reuse your old PowerGlide starter (designed to fit a 153 tooth flex plate) and return the 168 tooth flex plate and starter you bought.

Big Dave
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