Drivetrain› Automatic Transmissions and Components
Sun Coast Converters
Suncoast GM CATEGORY 2 4L60E REBUILD KIT WITH CONVERTER SUNSC-4L60E-CAT2-A
SKU: S02K SC-4L60E-CAT2-A
Advanced — 4+ hours
Description
It includes a new 4L60E overhaul kit, Alto Red Eagle clutch kit with power packs, high-performance Kolene steel kit, new 4L60E filter, bushing kit, and thrust washer kit. Key upgrades feature Sonnax components, a Borg Warner Upgraded 29 Element Sprag with a dual cage design, a High Output Pump Slide Spring, and a 4th Gear Servo Return Spring. The kit is engineered for a complete high-performance rebuild, providing components to enhance line pressure, accumulator pressure, and shift calibration for quick, firm shifts. The Alto Red Eagle clutches offer superior frictional properties and wear characteristics in high horsepower applications. The kit also includes a SunCoast Triple Disc Billet 4L60/65/70E Converter.
Fitment
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Specifications
| Brand | Sun Coast Converters |
| Part Number | S02K SC-4L60E-CAT2-A |
Videos
Chevrolet 4L60e Transmission Rebuild (internal stack)
Alto HP 4L60E Power Pack: The Ultimate Upgrade Guide
All the parts needed for a 4l60e rebuild.
Is the 4L60E Worth Upgrading?
Your Guide to a Sonnax 4L60/E High Horsepower Level 3 Transmission Build
Common Problems With the 4L60E and 4L65E
4L60e, 65, 70e converter failure. How to fix the problem block pulse with modular “PWM” how to...
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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