2500 Stall Converter for TH400 – What Should I Know?

[quote=“nrios, post:8, topic:3008”]What do you think about going with a 3000 stall instead?[/quote]Definitely overkill for a street application! Stick with the 2500 for a good balance.

5 Likes

Don’t forget to recheck your fluid levels after installation. The converter can change how much fluid is needed.

3 Likes

Exactly! I learned the hard way when my TH400 started slipping due to low fluid.

What’s the typical stall speed for a stock TH400 without a converter? Just trying to gauge how much difference I might see.

[quote=“adrian90, post:12, topic:3008”]What’s the typical stall speed for a stock TH400?[/quote]Usually around 1500-1800 RPM. So you’ll definitely notice a difference with the 2500 stall!

Remember, proper alignment with the flexplate is essential. A misalignment can cause early failure of the converter.

Can’t stress enough how important it is to use a quality cooler. Higher stall converters can heat up ATF more than stock ones.

4 Likes

True! Nothing like blowing a transmission because you skimped on cooling – learned that the hard way!