Bridge the gap between Honda power and proven GM drivetrains.
This Honda J Series 3.5L V6 to GM Automatic Transmission Adapter Kit is built for serious swaps, giving you a clean and reliable way to mate a J35A4 engine to popular GM transmissions. Designed specifically for compatibility and strength, it takes the guesswork out of custom drivetrain setups.
If you're building a buggy or swap project and want Honda reliability with GM transmission options, this is the foundation that makes it work.
Key features
Adapter system for Honda J35A4 to GM automatic transmissions
Includes crank adapter and bellhousing adapter
Includes new starter
153 tooth flexplate option available (SFI approved)
Includes all required hardware
Includes installation directions with pictures
Made in the USA
tips & Notes
Only compatible with J35A4 engine due to bellhousing and oil pan differences across J-series motors
Torque converter is required (sold separately)
Engines capable of up to ~340HP on stock internals and ECU
Designed for custom builds and swap applications
Installation
Mount bellhousing adapter to engine
Install crank adapter and flexplate
Install provided starter
Mate transmission to adapter assembly
Install torque converter (required)
Follow included instructions for full installation and torque specs
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