TCI LS1 6-Bolt SFI Flexplate

TCI LS1 6-Bolt SFI Flexplate

The TCI LS1 6-Bolt SFI Flexplate is designed for high-performance LS-series Chevy engines, providing enhanced durability and reliability for street, strip, and racing applications.

Key Features

• SFI 29.1 approved for safety and performance
• Fits most Gen III and Gen IV LS-series Chevy engines
• Compatible with 4.8L, 5.3L, 5.7L, 6.0L, 6.2L, and 7.0L V8 engines using a 6-bolt crankshaft flange
• 168-tooth flexplate, .035" thicker than stock for increased strength
• Starter ring gear welded on both sides for added durability
• Constructed from high tensile strength material to resist elongation and cracking
• Sized for 3/8" mounting bolts; can be drilled for 7/16" high-performance converter bolts

Fitment

• Drilled for 10.75" small GM converter bolt pattern
• Also drilled for 11.062" (281mm) LS-style converter bolt pattern
• Includes converter pilot adapter for older small block or big block Chevy (non-LS) converters

Important Notes

• For 4L80E or TH400 with 11.5" torque converter bolt pattern, use P/N 399754
• Does NOT fit 1999-2000 6.0L engines with 0.400" extended crank flange and factory flat flexplate
• Does NOT fit 1999-2000 4.8L engines originally with manual transmission

Note: Professional installation is recommended to ensure proper fitment and torque specifications.