FTI TH400 Ultrabell Bellhousing - fits OEM SFI Case - GM Small Block, Big Block LS

• SFI certified, can be used to repair damaged factory case, stronger bell option than stock.

The FTI Performance F1042 TH400 Ultra-Bell Bellhousing is a high-strength replacement and upgrade for applications using a GM TH400 transmission. Manufactured from one-piece cast aluminum, this bellhousing provides greater strength than a stock bellhousing while helping protect the transmission case in demanding automotive applications. Its design fits most stock floorboards, making it a practical choice for performance builds and repairs where clearance and durability are important.
The FTI Performance F1042 is SFI certified and can be used to repair a damaged factory case or replace a stock bellhousing with a stronger alternative. It is engineered for compatibility with GM small-block, big-block, and LS engines, offering versatile fitment for a wide range of performance and racing projects. The cast-aluminum construction combines rigid support with dependable service in high-load drivetrain environments.
Designed for enthusiasts, builders, and professional installers, the FTI Performance TH400 Ultra-Bell delivers reliable bellhousing protection without requiring extensive modifications to the vehicle floor area. Confirm transmission, engine, and vehicle fitment before installation to ensure proper alignment and clearance. The F1042 is supplied as one bellhousing and is intended for automotive use.

Features:

• One-piece cast aluminum construction for increased strength compared with stock bellhousings

• SFI certified for qualifying performance and racing applications

• Compatible with GM TH400 transmissions and GM small-block, big-block, and LS engines

• Designed to fit under most stock floorboards

• Can be used to repair a damaged factory transmission case

• Provides a stronger bellhousing option than stock equipment