Flexplate Adapter Spacer Stainless Steel for GM LS1/LS2/LS3/LS6/LS7
The Flexplate Adapter Spacer in stainless steel is the essential solution when mounting a TH350 or TH400 transmission behind a GM LS engine that uses a curved flywheel. Designed to center the converter nose to the curved flexplate, this spacer ensures precise alignment, smoother engagement, and reduced wear on transmission and engine components. Built for durability, its stainless steel construction stands up to engine bay heat and road conditions, making it a reliable choice for LS1/LS2/LS3/LS6/LS7 setups, including Camaro and Firebird applications.
When you’re swapping in a TH350 or TH400 behind an LS engine, the adapter spacer helps eliminate misalignment that can cause converter binding or vibration. This part is specifically intended for 1998–2004 LS1-based engines using a TH350 or TH400 transmission, and it works with the curved flywheel configuration common to these builds. With a simple install, you gain confident alignment and a cleaner, more reliable drivetrain connection.
Professional installation is highly recommended to ensure proper seating and alignment. Instructions are not included, so please plan accordingly or consult a trusted technician if you’re unsure about the process. The spacer ships as 1 x Flexplate Adapter Spacer, ready to support your LS engine conversion without added guesswork.
Benefits & Tips
- Precise centering of the converter nose to the curved flexplate for smoother operation and reduced wear.
- Improved drivetrain alignment during LS engine conversions, helping avoid vibration and potential transmission binding.
- Cost-effective solution for upgrading or completing TH350/TH400 behind LS swaps in popular platforms like Camaro and Firebird.
Product specifications
- Material: Stainless steel
- Brand Name: NONE
- Item Type: Engine Component
- Engine compatibility: GM LS1/LS2/LS3/LS6/LS7 with TH350/TH400
- For use on: 1998–2004 LS1-based engines
- In package: 1 x Flexplate Adapter Spacer
- Origin: Mainland China
Package includes:
- 1 x Flexplate Adapter Spacer
Warnings/Reminders
- Professional installation is highly recommended.
- Instructions are not included.
- Verify compatibility with your specific engine and transmission configuration before installation.
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