99T Aluminum Bellhousing Kits with 5.5 Ultra Clutch meet the requirements of racing series that do not allow magnesium bellhousings while providing the lowest weight and inertia of Tilton’s 6-leg 5.5 Ultra clutch.

The lightweight and rigid aluminum bellhousing provides maximum ground clearance and features an easy access side-bolt mounting system for the starter.  Unlike other bellhousings on the market, the transmission no longer has to be removed in order to service the starter.  The lightweight and 5.5 ULTRA clutch and small diameter 99-tooth cover-mount ring gear provides an ultra-low inertia and maximum reliability.

Typical Applications

• Late Model
• Super Late Model
• Asphalt Modified

Kit Includes:

Bellhousing

• Aluminum rear-mount starter bellhousing designed for maximum weight savings
• Compact design provides increase ground clearance and exhaust header clearance. Distance from centerline of crankshaft to bottom of bellhousing is only 4.5”
• Integral mounting ears for use as rear engine mount
• Accepts transmissions with Chevy 4-bolt mounting pattern and 4.68” register diameter
• Blueprinted for parallelism and concentricity
• Weighs 11.4 lbs

Clutch-Flywheel Assembly

• 5.5 ULTRA metallic clutch. 2-disc and 3-disc options
• Billet steel 99-tooth (8.42”) ring gear
• Button Flywheel
• 26-Spline clutch disc pack
• Aircraft-grade clutch bolts
• High-strength ARP flywheel bolts

Hydraulic Release Bearing

• 2300-Series hydraulic release bearing
• 38mm contact diameter bearing provides improved clutch modulation
• 3-bolt bellhousing mounted

Super Starter

• 40000-Series 3.0HP high-torque gear reduction mini starter
• Side-bolt mounting design provides secure mounting to bellhousing and easy access for service