1966-1981 C2-C3 Aluminum Bell Housing 11 Inch 3899621 - OEM Number(s) (3899621)
Built for Power—Designed for Precision: The Bell Housing Your Corvette Deserves
Whether you’re rebuilding your big-block beast or restoring a factory-original ride, the 1966–1981 Corvette C2-C3 Aluminum Bell Housing (Part #3899621) is a must-have for transmitting power with strength, style, and factory accuracy. This bell housing fits 11-inch clutch applications and is a direct replacement for the original GM Part Number 3899621, making it ideal for both restoration and performance builds.
Designed to connect your engine to your manual transmission with precision, the bell housing plays a crucial role in alignment and drivetrain reliability. A worn, cracked, or incorrect housing can lead to clutch misalignment, shifting issues, or even transmission damage. This cast aluminum housing solves that with durability, heat resistance, and proper geometry—just like GM intended. GM Restoration Part
Key Features:
- Fits:
- 1966 427/425 Only
- 1967-1968 427 (excludes L88)
- 1970-1974 454
- 1969-1981 Small Block 350
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For use with 11-inch clutch setups
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168 Tooth 14 Inch Flywheel
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Direct replacement for GM Part #3899621
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Connects engine to manual transmission with proper alignment
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Supports smooth clutch engagement and reliable shifting
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Ideal for high-performance builds or factory-correct restorations
Material & Finish:
This bell housing is more than just a structural link—it's a performance-critical component that ensures drivetrain integrity under load. Whether you're rowing through gears at the track or cruising to a car show, make sure your Corvette is equipped with the right foundation.
Add this bell housing to your cart today and lock down your Corvette’s performance—because real power starts at the connection point.
Also known under these part numbers: (For reference only)