Aftermarket powerglide cases bring a lot of advantages over stock cores:
- Greater strength
- Revised oil channels optimized for racing
- Improved wall thickness to meet SFI safety requirements
- Elimination of non essential areas and features for OEM usage
What are the practical limits for the stock cases? What are some important tips to remember when using a stock case?
BTE recommends using a polyurethane transmission mount. Solid, rigid mounts are often too stiff for a powerglide case when a heavy car launches hard. This will often lead to a crack in the case.
Also, stock cases are more prone to failure if a driveshaft, rear end, or u joint is not properly configured or faulty.
Finally, it is important to monitor line pressure when using a stock powerglide case. Pressures over 245 lbs can cause leaks or cause cracks to form in the thin die cast aluminum found in some of the various casting versions.
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