ATI Performance Products TH400 transmissions offer great performance for 400 c.i.d. or larger big blocks.Modifications and options include:* Fully blueprinted and equipped with high-flow lube circuits, increased torque capacity, and hard chrome oil rings* Sprags replaced with heavy-duty units* Clutch packs are assembled for individual applications* Compu-Flow valve body standard* Special low-gear sets for increased launch capability* Lightweight options available to upgrade the transmission. Rated up to 1,200 HP, Reverse Manual, Good for high HP cars up to 3200 lbs

• Race Clutches and Steels
• Blueprinted High Flow Front Pump
• Heat-treated Stator Tube, pinned
• Roller Bearings
• ATI Reverse Manual Compu Flow Valve Body
• ATI Severe Duty Alum Direct Drum One-year warranty on Drum Assembly
• 300M Input Shaft with OEM steel drum
• 300M Intermediate Shaft
• Heavy Duty Steel Forward Clutch Hub
• Heavy Duty Center Support machined for faster transbrake and bronze support bushing
• Heavy Duty Clutch Packs
• -6 AN Fittings (in Supercase units)
• High Flow Filter
• Deep Aluminum Cast Transmission Pan
• 2.48 Low Gear-helical
• SuperCase & Chevy Bell Housing pattern