$10,000.00
Available on backorder
Description
The TSI 1,000HP Stage 3, 4L80E High-Performance Transmission is built for serious power and performance. Whether you’re pushing boost, nitrous, or just big cubic inches, this transmission is fully engineered to hold up to 1,000 horsepower. It starts with everything in our Level 2 build—then adds key billet upgrades like a 300M input shaft, rollerized billet forward clutch hub, and a heavy-duty piston retainer for uncompromising strength and durability.
Ideal for high-power street/strip or off-road builds, this transmission delivers crisp shifts and efficiency. Pair it with a TSI Triple Disc lockup torque converter for maximum efficiency—lockup reduces heat, improves fuel economy, and drops cruising RPM. This ensures the best cruising performance while having the reliability in our higher horsepower builds.
| TSI 4L80E Transmission Comparison Table | ||
| Feature / Component | Level 3 (Up to 1,000 HP) | |
| TSI Part No. | 4L80-101 | |
| Performance clutches | ✅ Included | |
| Performance shift kit | ✅ Included | |
| Upgraded TCC regulator valve | ✅ Included | |
| 34-element sprag | ✅ Included | |
| Upgraded boost valve & regulator | ✅ Included | |
| Heavy-duty intermediate clutch snap ring | ✅ Included | |
| New bushings, bearings, wiring, solenoids | ✅ Included | |
| 300M billet-steel input shaft | ✅ Included | |
| Rollerized billet-steel forward clutch hub | ✅ Included | |
| Heavy-duty intermediate piston retainer | ✅ Included | |
| 300M Billet Steel Main Shaft | ❌ Not included | |
| Aermet Billet Steel Main Shaft | ❌ Not included | |
| Dual feed direct clutch mod | ❌ Not included | |
| Billet Aluminum Hard Coat Drum & 36-Element Sprag | ❌ Not included | |
| Billet Low Reverse Servo Pistons | ❌ Not included | |
| Billet Intermediate Piston | ❌ Not included | |
| 300M Billet Output Shaft | ❌ Not included | |
| Horsepower rating | Up to 1,000 HP |
