ATI Performance Products 400011 Turbo 400 SuperCase Aluminum Transmission Case with Chevy Bellhousing

The ATI Performance Products Turbo 400 SuperCase represents a complete redesign of the classic TH400 transmission case, engineered for high-performance street and racing applications. This premium aftermarket case is designed and CNC machined entirely at ATI's facility using 356-T6 sand cast aluminum construction, delivering exceptional strength while meeting SFI 4.1 and 30.1 specifications without requiring an internal shield.

Key Features:

• Heavy-duty 356-T6 sand cast aluminum construction provides superior strength compared to permanent molding methods
• SFI 4.1 and 30.1 certified for competitive racing without internal shield requirements
• CNC machined on 4-axis horizontal equipment with optimized valve body passages for lightning-fast transbrake releases and shift times
• Enhanced fluid pathways deliver improved performance and reliability under extreme conditions
• Dual pattern bellhousing mount accepts ATI SuperBells for Chevy, Ford, and Mopar applications, plus Reid and Browell bellhousings
• Reinforced center support with additional mounting lugs and three extra bolt provisions for increased 2nd gear strength
• Thicker extension housing and output shaft bearing area provides extra support for 4WD conversions
• Output shaft roller bearing design for reduced friction and improved durability
• Universal cooler line ports accept Powerglide quick-connect fittings and standard cooler hose connections
• Compatible with OEM transmission pans, extension housings, and approximately 99% of stock internal components

What's Included:

• TH400 SuperCase transmission case
• Chevy pattern bellhousing
• Modified center support pressure plate

This SuperCase is ideal for racers and performance enthusiasts building high-horsepower TH400 transmissions who demand the ultimate in strength, precision, and versatility. The case accepts a wide range of bellhousing options and maintains compatibility with most stock internal components, making it suitable for both ground-up builds and upgrades to existing transmissions.