Circle D HP Series 11" NAG1 Torque Converter – Dodge & Mopar NAG1 (WA580)
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The HP Series 11" NAG1 converter is built on the factory core with revised stall speed and power handling. Circle D calls it a great choice for a street car up to around 600 whp.
Fits
- Dodge and Mopar NAG1 / WA580 transmission (per Circle D)
Features
- Improved clutch pack surface area
- Damperless turbine
- HD Torrington-style bearings
- Billet aluminum stator on the 3400 rpm and higher stall options
Satera Tuning handles the install.
Want it installed? Our technicians can install it at our shop in Marengo, IL, and we tune it on our in-house chassis dyno, by appointment. Street tuning dials in drivability.
Not local? Many Mopar and Ford combinations can be tuned remotely with HP Tuners.
Submit a work request and we'll confirm fitment, install and tuning for your car. Shop rates are listed on our Rates & Terms page.
Lead time depends on the manufacturer and on our shop schedule, so it varies by part. If you need something by a certain date, contact us before ordering and we'll check current availability.
See our returns and warranty policy for the details on returns and exchanges.