The Texas Speed 1997+ LS SFI Chromoly Flexplate is an SFI 29.1 certified replacement for the factory flexplate on GM LS engines. It is stamped from cold-rolled chromoly steel at .035" greater thickness than the stock plate, and the 168 tooth ring gear is a forged one-piece steel gear that is double welded to the plate for strength under repeated high-rpm starts and hard launches.
The plate is internally balanced for the LS crankshaft and carries both the 3 x 11.00" and 3 x 10.75" torque converter bolt patterns, so it accepts common GM converters without an adapter plate. A gold irradiate finish resists rust in the bellhousing. It is a direct bolt-on component for 1997 and newer LS applications and is sold as a single flexplate.
Specifications
- Application: 1997 and newer GM LS engines
- Material: Cold-rolled chromoly steel
- Ring gear: 168 tooth
- Balance: Internal
- Converter bolt patterns: 3 x 11.00" and 3 x 10.75"
- Certification: SFI 29.1
- Ring gear: Forged one-piece steel, double welded
- Thickness: .035" thicker than a stock flexplate
- Finish: Gold irradiate coating to resist rust
- Installation: Direct bolt-on
- Part number: TSP-34600 (Texas Speed 1834600)
FAQ
What engines does the Texas Speed 1997+ LS chromoly flexplate fit?
Texas Speed lists this flexplate for 1997 and newer GM LS engines. It is internally balanced for the LS crankshaft and uses the 168 tooth ring gear found on LS applications with GM automatic transmissions.
Which torque converter bolt patterns does this flexplate accept?
The Texas Speed 1997+ LS flexplate is drilled for both the 3 x 11.00" and 3 x 10.75" converter bolt patterns, which covers the common GM three-bolt converters used behind LS engines.
Is this flexplate SFI certified?
Yes. The flexplate is SFI 29.1 certified, which many sanctioning bodies require for automatic transmission cars running quicker than a set elapsed time.
How is the Texas Speed flexplate stronger than a stock LS flexplate?
It is made from cold-rolled chromoly steel .035" thicker than the factory plate, and the forged one-piece ring gear is double welded to the plate rather than single welded. A gold irradiate finish protects it from rust.
Is a flexplate needed for a manual transmission?
No. A flexplate is only used with an automatic transmission and torque converter. Manual transmission LS engines use a flywheel instead.
