Items You Need
GM 4L80E/4L85E
JEGS 555-60414K1 Torque Converter Kit for GM 4L80E/4L85E Mounted to an LS Series Engine Kit Includes:
- (1) JEGS Torque Converter for GM 4L80E/4L85E Mounted to an LS Series Engine 555-60414
- (1) JEGS SFI Flexplate for GM LS Engines 555-601080
JEGS 555-60414K1 Torque Converter Kit for GM 4L80E/4L85E Mounted to an LS Series Engine Kit Notes:
- This Kit is designed for LS series engines using late model LS 4L80E or 4L85E transmission
- Will not work in place of "Flat" Flexplate on 6.0L with the Extended Crank Flange
- Converter diameter may vary based on Core Availability
- 10.750 in./11.500 in./11.062 in. diameter triple bolt circle
- For Big Block applications, use JEGS XHD Converters
Performance Torque Converter General Application Chart * | |||
Advertised Camshaft Duration | Rear Gear Ratio | Engine RPM Range & Compression Ratio | Converter RPM Stall Speeds ** |
Stock to 260° | Stock to 3.23 | 1000-4600 8 to 9.5 | 1500 to 1700 |
Stock to 265° | Stock to 3.23 | 1400-5000 8 to 9.5 | 1600 to 1800 |
265° to 280° | 3.00 to 3.73 | 1600-6000 9.5 to 10.5 | 2200 to 2400 |
280° to 300° | 3.55 to 4.56 | 2000-6500 9.5 to 11 | 3000 to 3400 |
280° to 310° | 3.73 to 4.88 | 2800-7000 10 to 11.5 | 3500 to 3800 |
290°+ | 3.73+ | 3400-8000 10.5 to 12 | 3500+ |
* This chart is a guideline. The stall speed may vary in your application.
** Recommended for use with Small Block engines only
FAQ
What is the stall speed of a 4L80E stock converter?
- The stock stall speed of a 4L80E torque converter varies, but it's generally in the range of 1600-1800 RPM.
Which torque converter stall is best for a street car with a 4L80E?
- For a street car, a torque converter with a stall speed in the 1800-2200 RPM range is recommended. This provides a balance of street drivability and performance.
Are all 4L80E torque converters the same?
- No, torque converters for the 4L80E can vary in stall speed, design, and materials. It's essential to choose one that matches your vehicle's power and intended use.
At what speed does a 4L80E lock up?
- The lock-up speed of a 4L80E transmission typically occurs at highway cruising speeds, around 45-50 MPH, depending on the vehicle and tuning.
Specifications:
Will this work for a new ls3 motor from blue print engines with a GM 4l85e transmission. Thank you
I have a 2002 5.3 L with a 4L 60. I’m switching to a 2001 4l80 , what kind of power will this converter hold? The 5.3 L has a BTR stage 4 cam , and a single turbo, putting around 600 horse to the back wheels does this converter have six mounting holes?
Tengo un 6.0 y una 4l80e instalados en mi sierra 1500, este kit de turbina y cremallera quedan bien en mi 6.0 ?
I have a 2002 lq4 and an older 4l80e (1992) and running a stock converter and flex plate (6-bolt). Will this work or do I just need a truck 5.3 flex plate?
Will this work for my 2000 Chevy k3500 6.5 turbo diesel with the 4l80e trans
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