LS Heavy Duty Steel Flex Plate
 
- SFI 29.1 certified
- .035 inch thicker than factory flex plate 
- Includes 10.75" & 11.06 torque converter bolt patterns. 
- Compatible with Powerglide, TH400, TH350, 700R4, 4L60e transmissions for LS series engines
- 168 teeth. 0.210" thick steel construction
- Will require torque converter spacer part number 551165 for NON LS transmissions
- Includes: 1 flex plate, 6 flex plates bolts
Common torque converter bolt patterns: 10.75" fits Powerglide, TH350, 2004R, 700R4, 4L60, (SBC & Non LS with 4L60E), 11.06 (LS & 4L60E with LS engine), and 11.5"(TH400 & 4L80E)
 
(Will not fit 1999-2000 6.0L engines or LSA/LS9 (8 bolt flywheel).  These years have extended length crankshaft flange and will NOT fit.)