Chevrolet SFI 29.1 Approved Flexplates

.067" thicker than stock
Made from A36 steel plate

This flexplate is designed for use when bolting a GM LS-based motor to a 4L80E and utilizes the 6-bolt mounting pattern. This flexplate is dual-drilled with the 11.50 in. and the 11.063 in. bolt pattern. This will not fit 1999-2000 6.0L applications with 0.400 in. extended crank flange and came with flat flexplate. This will not fit 1999-2000 4.8L applications that originally came with a manual transmission.

Durable Performance Flexplates

TCI Heavy-Duty Flexplates are .0350 in. thicker than stock plates in order to withstand the stress of high-RPM engines and high-stall torque converters. Chevy 168-tooth plates have dual bolt patterns to accommodate both Powerglide and Turbo-Hydramatic (TH) torque converters. TCI also offers externally-balanced Small Block Ford to GM Transmission Adapter Flexplates that feature a built-in pilot adapter and a dual bolt pattern for a simple bolt-on installation.

Note: For use with a racing converter or GM Powerglide adapter.

Specifications:

Flexplate Material: Steel
Safety Rating: SFI 29.1
Ring Gear Tooth Quantity: 168-tooth
Rear Main Seal Style: 1-piece
Engine Balance: Internal

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TCI Flexplate LS1/LS2/LS6/LS7 to 4L80-E Transmission

Durable Performance Flexplates

Specifications:

Hughes Performance 750 HP 4L80E Transmission

FTI 4L80 Billet Torque Converter

4L70 to 4L80 Conversion Harness

4L80 Crossmember