SuperMatic 8L90-E Transmission for LT4 Crate Engine
Brand: Chevrolet Performance
Part Number: 24284063
The product's part number has been changed or discontinued. Please see the details below.
Please Log in to receive
your Private and Specific
Please Log in to receive your
Private and Specific Offers
NEW 8L90-E EIGHT-SPEED AUTOMATIC TRANSMISSION FOR LT1 AND LT4 CRATE ENGINES
When it comes to world-class performance and technology, the Corvette and Camaro run with the best. Their advanced Gen V Small-Block LT4 engines are among the most power-dense in the industry and they’re offered with equally sophisticated transmission technology in the 8L90-E eight-speed automatic.
Best of all, unique algorithms enable the 8L90-E to deliver shift performance that rivals the quickest dual-clutch/semiautomatic transmissions found in many supercars – but with the smoothness and refinement that comes with a conventional automatic fitted with a torque converter.
A numerically high 4.56 first gear ratio offers strong take-off performance while a wide 7.0:1 overall ratio helps enhance cruising efficiency. Two versions are available: a slip-yoke design for use with the LT1 engine (P/N 24284055) and a fixed-yoke design to be used with the LT4 (P/N 24284063). Each version includes the torque converter, controller and harness.
Chevrolet Performance has adapted the production-based 8L90-E eight-speed automatic transmission for use with the LT1 and LT4 crate engines.
- Use with LT4 crate engines P/N 19332621 (wet sump) or P/N 19332702 (dry sump).
- Includes torque converter, controller and harness
- Must be used with compatible engine controller
- Four gearsets for greater efficiency
- Five clutches – two brake clutches and three rotating clutches
- World-class upshift speeds
- Friction-reducing features include synthetic fluid
- Gear ratios: 1st: 4.56, 2nd: 2.97, 3rd: 2.08, 4th: 1.69, 5th: 1.27, 6th: 1.00, 7th: 0.85, 8th: 0.65, reverse: 3.8
You save $2,287.50
You save $2,391.00