Suitable for use behind engines producing up to 450 lb/ft of torque which covers most small blocks and mild big blocks. A low first gear ratio and overdrive 4th make these very desirable units. Won't replace 4L60E applications (post '93).

• 4 speed GM transmission
• 3:06 1st gear ratio, 1:63 2nd, 1:1 3rd & .70 OD ratio.
• Corvette 2-4 servo assembly.
• Recalibrated valve body.
• New overdrive sprag assembly.
• New external electric connector.
• Rebuilt front pump & governor with new gear.
• All new B&M high performance friction plates.
• New thrust washer kit, races, thrust bearings bushings & 2-4 band.
• High performance reaction carrier assembly.
• Can be used with Lock-up Control unit.
• Heavy duty sunshell.
• Input housing includes support ring.
• Improved on sun gear.

Product Reviews for BM117101 - B&M