ATI Performance Products, Inc®, is proud to announce that after two years in the making, the T350 SFI Certified SuperCase is finally here! Just like everything ATI makes, this new case is cast in America and machined in-house! The T350 SuperCase features many upgrades to meet the high performance demands of current racers from bracket racers on up to late model Factory Stock cars!

  • 356-T6 Permanent Mold Aluminum Casting meets SFI 4.1 - no shield or blanket required
  • CNC machined valve body passages yield extremely fast transbrake release and quicker shift times
  • Increased thickness extension housing and bell flange area to ward off breakage
  • Stronger internal lugs and more material to allow room for more clutches
  • Custom valve body passages can be made to order for builders with specific requirements
  • Band adjuster version for non-GM internal components
  • Retains OEM Governor cavity for auto shift applications
  • Also available with no Governor or forward band machine work 

More From This Category

ATI Performance Products Transmission Case, Powerglide, Aluminium, Natural, w/ For Toyota Supra Bellhousing, Each

ATI Performance Products Transmission Case, Powerglide, Aluminium, Natural, w/ For Toyota Supra Bellhousing, Each

$3,117.97

View
Quick Time Bellhousing, 7.25 in. Clutch, 125 Tooth Flywheel, 5.9 in. Height, Manual Transmission, Steel, Black, For Mazda, Each

Quick Time Bellhousing, 7.25 in. Clutch, 125 Tooth Flywheel, 5.9 in. Height, Manual Transmission, Steel, Black, For Mazda, Each

$3,006.74

View
JW Transmissions Bellhousing, TH400/350 to 392 Hemi (requires 92456-HP)

JW Transmissions Bellhousing, TH400/350 to 392 Hemi (requires 92456-HP)

$1,142.18

View
ATI Performance Products Ext Housing, Shorty w/ Needle Bearing, Tail Short, Powerglide

ATI Performance Products Ext Housing, Shorty w/ Needle Bearing, Tail Short, Powerglide

$266.39

View
JW Transmissions Bellhousing, Ultra Bell, Aluminum, Natural, SFI-approved, For Chevrolet, Small Block, For Ford C-4, Each

JW Transmissions Bellhousing, Ultra Bell, Aluminum, Natural, SFI-approved, For Chevrolet, Small Block, For Ford C-4, Each

$1,084.34

View
Quick Time Bellhousing, 125 Tooth Flywheel, 6.625 in. Height, Automatic Transmission, Steel, Black, For Mazda 13B Or 20B Rotary Engine, Each

Quick Time Bellhousing, 125 Tooth Flywheel, 6.625 in. Height, Automatic Transmission, Steel, Black, For Mazda 13B Or 20B Rotary Engine, Each

$2,401.08

View