99T Magnesium Bellhousing Kits with Ultra 5.5 Clutch were engineered specifically to provide a combination of the lightest weight bellhousing and lowest weight & inertia 6-leg 5.5 Ultra clutch for the most demanding short track racers.

The lightweight and rigid magnesium 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

• Magnesium 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 7.6 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-Series0HP high-torque gear reduction mini starter
• Side-bolt mounting design provides secure mounting to bellhousing and easy access for service