Tilton - 99T 5.5" ULTRA Magnesium Bellhousing Kits
Tilton 99T 5.5 Magnesium Bellhousing Kits were engineered specifically to meets the demands of short track racing. 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. Since 1972, Tilton has been supplying championship winning parts to racers and these 99T 5.5 Magnesium Bellhousing Kits are destined to become the new standard in short track racing.

Typical Applications
Late Model
Super Late Model
Asphalt Modified

99T 5.5″ Aluminum Bellhousing Kits include:

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
3-bolt bellhousing mounted

Super Starter
40000-Series 3.0HP high-torque gear reduction mini
Rear-mounts on bellhousing
Side-bolt mounting design provides secure mounting to
bellhousing and easy access for service


Part # Description Price
0125261620 Chevy Early - 5.5" ULTRA 2 Disc $2,762.50 
0125261630 Chevy Early - 5.5 ULTRA 3 Disc $2,847.50 
0125262620 Ford - 5.5" ULTRA 2 Disc $2,762.50 
0125262630 Ford - 5.5 ULTRA 3 Disc $2,847.50 
0125263630 Chevy LS - 5.5 ULTRA 3 Disc $2,847.50 
0125264620 Chevy Crate - 5.5 ULTRA 2 Disc $2,826.25 

Lefthander Chassis, Inc.
13750 Metric Rd. Roscoe, IL 61073
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