Chevrolet Performance 4L65-E Hydra-Matic 4-Speed Automatic Transmission - LS Engines

Heavy-Duty Evolution of the Classic 4L60-E

The 4L65-E is a robust, electronically controlled four-speed overdrive transmission that represents a significant upgrade over the standard 4L60-E. Featuring enhanced internal components for increased durability and torque capacity, this remanufactured unit delivers reliable performance for LS-Series V8 engines.

Specifications:

• Type: Four-Speed Automatic Overdrive Transmission
• Electronic Control: Fully electronically controlled with adaptive shift patterns
• Torque Capacity: 430 lb-ft maximum input torque
• Weight: 194.6 pounds
• Length: Approximately 23.5 inches

Gear Ratios:

• 1st Gear: 3.06:1
• 2nd Gear: 1.62:1
• 3rd Gear: 1.00:1 (Direct Drive)
• 4th Gear: 0.70:1 (Overdrive)
• Reverse: 2.29:1

Enhanced Internal Components:

• Five-pinion planetary gearsets (vs four-pinion in 4L60-E)
• Heat-treated stator shaft splines for increased durability
• Induction-hardened turbine shaft
• Seven-plate 3.4 clutch assembly
• Powdered metal sun-shell gears for enhanced strength
• Improved valve body calibration

Performance Features:

• 20% more torque capacity than 4L60-E
• Maximum shift speeds: 1st-2nd: 6,400 RPM, 2nd-3rd: 6,200 RPM, 3rd-4th: 5,600 RPM
• Electronically controlled lockup torque converter
• Adaptive learning capability for optimized shift patterns

Installation Requirements:

• Compatible with LS-Series V8 engines
• Requires electronic controller (P/N 19332775 for carbureted applications)
• SuperMatic converter required for Gen I and Gen II engine bolt-up
• Torque converter sold separately

Remanufactured Quality:

• Factory-level remanufacturing process
• All wear components replaced with OEM or upgraded parts
• Comprehensive testing and validation
• Professional warranty coverage

This Product is a USA Special Order, and will take around 6 - 8 weeks to arrive, call to discuss options