Going Powerglide

harrisonm said

Hey, guys, I am not a racer. I have a question I hope one of you can answer. Why is there such a following for Powerglides in racing. I would think that a well-built Torqueflite, or some other 3-4 speed automatic, would be preferable over a 2 speed Powerglide. Are they that much stronger than a well-built Torqueflite? Again, I don't know much about racing. Please school me.
Thanks,
Mike.

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Many of reasons. Some of the most important reasons are the consistency it’s known for. It’s got less gear ratio in 1st gear than any 3 speed, so less susceptible to traction issues. Only 1 shift instead of 2 so one less variable going down the track. Parts availability is big, and how many manufacturer produce aftermarket parts for a glide is a big reason. There is less parasitic drag going down the track, less HP to turn, and lighter than any 3 speed. SFI case is an option which the 727 does not have that option. The glide has 2 less drums, 1 less planetary, 1 less band, and no overrunning clutch compared to a 727. Some say it’s stronger than some of the 3 speeds, which I do not personally believe. They’re all strong with todays aftermarket parts and they can tolerate very high HP levels.