Description
Product Overview
The Chevrolet Performance SuperMatic 10L90-E Transmissions 19420480 is a technologically advanced 10-speed automatic transmission kit built for compatible Chevrolet Performance LT crate engine projects. Designed to balance performance, efficiency, and modern drivability, this transmission gives builders a serious automatic drivetrain solution for LT1, LT4, and LT5 applications.
This kit is identified by Manufacturer’s Part Number 19420480 and Summit Racing Part Number NAL-19420480. These product identifiers help vehicle owners, custom builders, mechanics, restoration shops, performance shops, service departments, and drivetrain specialists verify the correct transmission package before purchase.
The 10L90-E platform features electro/hydraulic controls with clutch-to-clutch shifting, giving the transmission a modern operating design for compatible builds. With four gearsets, six clutches, two brake clutches, and four rotating clutches, this transmission is built around advanced automatic transmission technology.
The transmission includes an aggressive 4.70:1 first gear ratio for enhanced off-the-line performance and a 7.39:1 overall gear ratio spread. It also features three overdrive gears, including a 0.64:1 top gear ratio, helping support efficient cruising in properly matched applications.
This kit includes the torque converter, transmission controller, and wiring harness, which are major value points for buyers planning a modern electronic automatic transmission installation. It also includes a cooler line adapter with 6AN fittings and a production-style vent tube.
The flexplate is not included, the transmission cooler is not included, transmission fluid is not included, and the dipstick is not included, so buyers should confirm all supporting installation components before ordering.
Fitment and Application Details
The Chevrolet Performance SuperMatic 10L90-E 19420480 transmission kit should be matched carefully to the intended LT crate engine, vehicle platform, drivetrain layout, and installation requirements before ordering. Automatic transmission compatibility can vary by engine, bellhousing pattern, controller integration, wiring, converter setup, flexplate, transmission mount, driveshaft/yoke setup, cooler routing, fluid requirements, and available chassis space.
This transmission is designed to be matched with compatible LT crate engines, including LT1, LT4, and LT5 applications. Buyers should confirm crate engine compatibility, vehicle platform compatibility, controller requirements, wiring integration, and driveline setup before purchase.
Important fitment details to confirm include vehicle platform, engine selection, LT1 compatibility, LT4 compatibility, LT5 compatibility, 10L90-E compatibility, Chevy bellhousing bolt pattern, torque converter fitment, flexplate requirements, converter bolt pattern, crankshaft pilot fitment, transmission mount location, crossmember position, slip yoke compatibility, driveshaft length, shifter setup, controller integration, wiring harness routing, speed signal requirements, cooler line adapter fitment, 6AN cooler fitting compatibility, lockup/control requirements, fluid specifications, dipstick setup, and installation hardware.
The transmission features a slip yoke-type tail shaft, allowing it to be used with the conventional prop shaft design used in many older vehicles. Buyers should still confirm the correct yoke, driveshaft length, crossmember position, and transmission mount requirements before installation.
The torque converter is included, and the advertised flash stall rating is listed as stock. Converter behavior should be confirmed against the engine, vehicle weight, axle ratio, tire size, and intended use.
The transmission controller and wiring harness are included, but buyers should confirm correct integration with the engine management system, vehicle wiring, throttle signal, speed signal, and calibration requirements.
The transmission cooler is not included, so a proper cooler should be selected separately. The kit does include a cooler line adapter with 6AN fittings, which supports cooler line planning.
For a complete installation, additional components may be required, including a flexplate, transmission cooler, cooler lines, transmission fluid, dipstick, transmission mount, crossmember hardware, driveshaft/yoke components, shifter parts, seals, and vehicle-specific installation hardware.
Build Quality and Reliability
The Chevrolet Performance SuperMatic 10L90-E Transmissions 19420480 is built as a new performance transmission kit, not a remanufactured unit. It is designed to give builders a Chevrolet Performance automatic transmission solution for modern LT crate engine applications.
The 10-speed configuration provides a wide ratio spread and advanced gear management for compatible builds. The 7.39:1 overall gear ratio spread supports strong low-speed launch performance and efficient higher-speed cruising when matched correctly to the vehicle setup.
The 4.70:1 first gear ratio is especially valuable for enhanced off-the-line response, while the three overdrive gears and 0.64:1 top gear ratio help support relaxed cruising in properly configured vehicles.
The transmission uses electro/hydraulic controls and clutch-to-clutch shifting, giving it a modern operating structure designed for performance and efficiency.
The listed 650 lb.-ft. output torque rating is an important specification for builders matching this transmission to LT-based powertrains.
The OEM-style aluminum case with a natural finish and stock steel transmission pan with a natural finish provide the required transmission structure and appearance for compatible installations.
The included controller, wiring harness, torque converter, cooler line adapter with 6AN fittings, and production-style vent tube help make this kit a strong foundation for modern automatic transmission projects.
What Makes This Transmission Kit a Strong Choice
The Chevrolet Performance SuperMatic 10L90-E 19420480 transmission kit is a strong choice for buyers who want a modern 10-speed automatic transmission for compatible LT crate engine builds.
The 10-speed configuration gives builders a wide range of gear choices for acceleration, cruising, and drivability.
The aggressive 4.70:1 first gear ratio helps support strong launch performance from a stop.
The 7.39:1 overall gear ratio spread gives the transmission a broad operating range, while the three overdrive gears and 0.64:1 top gear ratio support efficient highway-style cruising in compatible applications.
The included torque converter, controller, and wiring harness add major value for buyers planning a complete electronic automatic transmission setup.
The included cooler line adapter with 6AN fittings and production-style vent tube help support installation planning.
The slip yoke-type tail shaft makes this transmission appealing for builders using conventional prop shaft designs in many older vehicles.
The 650 lb.-ft. output torque rating gives buyers a clear drivetrain specification to consider when matching the transmission to the intended LT engine and vehicle use.
Ideal Buyers and Use Cases
The Chevrolet Performance SuperMatic 10L90-E Transmissions 19420480 is ideal for LT crate engine builders, Chevy performance vehicle owners, restoration builders, restomod shops, custom vehicle builders, mechanics, drivetrain specialists, service departments, engine-swap builders, and performance shops that need a modern 10L90-E 10-speed automatic transmission kit.
It is suitable for compatible builds using Chevrolet Performance LT1, LT4, or LT5 crate engines where a modern automatic transmission package with controller and harness support is required.
This product is useful for LT engine swaps, high-performance restomods, custom Chevrolet builds, modern drivetrain upgrades, street performance cars, custom trucks, and compatible projects requiring a 10-speed SuperMatic transmission.
It is also a practical choice for professional installers confirming required supporting components such as the flexplate, transmission cooler, cooler lines, transmission fluid, dipstick, transmission mount, driveshaft/yoke setup, shifter components, and installation hardware.
The best buyer for this kit is someone who can confirm the LT1, LT4, or LT5 crate engine application, 10L90-E transmission requirement, controller integration, wiring needs, slip-yoke driveline compatibility, and required supporting installation parts before ordering.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Chevrolet Performance SuperMatic 10L90-E Transmissions 19420480 |
| Brand | Chevrolet Performance |
| Manufacturer’s Part Number | 19420480 |
| Part Type | Automatic Transmissions |
| Product Line | Chevrolet Performance SuperMatic 10L90-E Transmissions |
| Summit Racing Part Number | NAL-19420480 |
| Number of Gears | 10 |
| Transmission Platform | SuperMatic 10L90-E |
| Bellhousing Bolt Pattern Manufacturer | Chevy |
| Transmission Shift Pattern | Forward |
| Valve Body Style | Automatic |
| Torque Converter Included | Yes |
| Advertised Flash Stall Rating | Stock |
| Flexplate Included | No |
| Transmission Controller Included | Yes |
| Wiring Harness Included | Yes |
| Transmission Cooler Included | No |
| Trans-Brake Included | No |
| Lockup Compatible | No |
| Transmission Pan Style | Stock |
| Transmission Pan Material | Steel |
| Transmission Pan Finish | Natural |
| Yoke Style | Slip-on |
| Tail Shaft Style | Slip yoke-type tail shaft |
| First Gear Ratio | 4.70 |
| Top Gear Ratio | 0.64:1 |
| Overall Gear Ratio Spread | 7.39:1 |
| Gearsets | Four gearsets |
| Clutches | Six clutches: two brake clutches and four rotating clutches |
| Controls | Electro/hydraulic controls with clutch-to-clutch shifting |
| Output Torque Rating | 650 lb.-ft. |
| Transmission Case Style | OEM |
| Transmission Case Material | Aluminum |
| Transmission Case Finish | Natural |
| Transmission Shield Built In | No |
| Flexplate Shield Built In | No |
| Fluid Fill Location | Case |
| Transmission Fluid Included | No |
| Dipstick Included | No |
| Remanufactured | No |
| Quantity | Sold as a kit |
| Included Components | Torque converter, controller, wiring harness, cooler line adapter with 6AN fittings, production-style vent tube |
| Primary Engine Compatibility | Chevrolet Performance LT1, LT4, and LT5 crate engines |
| Fitment Support | Confirm compatibility before ordering |
Ordering Support and Fitment Guidance
Before ordering the Chevrolet Performance SuperMatic 10L90-E Transmissions 19420480, confirm that the kit matches your LT crate engine, vehicle platform, drivetrain layout, controller requirements, and installation plan.
Important details to verify include vehicle platform, LT1 crate engine compatibility, LT4 crate engine compatibility, LT5 crate engine compatibility, 10L90-E transmission requirement, Chevy bellhousing pattern, torque converter fitment, flexplate requirements, converter bolt pattern, crankshaft pilot fitment, controller integration, wiring harness routing, slip-yoke driveshaft compatibility, transmission mount location, crossmember position, driveshaft length, shifter setup, cooler line adapter fitment, 6AN cooler fitting compatibility, transmission cooler requirements, fluid specifications, dipstick setup, and installation hardware.
This kit includes the torque converter, transmission controller, wiring harness, cooler line adapter with 6AN fittings, and production-style vent tube. It does not include the flexplate, does not include the transmission cooler, does not include transmission fluid, and does not include a dipstick.
Because this is a modern electronic 10L90-E 10-speed automatic transmission, controller setup, wiring integration, calibration, cooler routing, and driveline planning should be confirmed before installation.
Our team can help confirm compatibility using the 19420480 part number, LT crate engine details, vehicle setup, and drivetrain requirements before purchase.
Frequently Asked Questions
What is the Chevrolet Performance 19420480 transmission?
The Chevrolet Performance 19420480 is a SuperMatic 10L90-E 10-speed automatic transmission kit designed for compatible Chevrolet Performance LT1, LT4, and LT5 crate engine applications.
Is this transmission remanufactured?
No. The Chevrolet Performance SuperMatic 10L90-E 19420480 is listed as not remanufactured.
What engines is this transmission designed for?
This transmission is designed for compatible Chevrolet Performance LT crate engines, including LT1, LT4, and LT5 applications.
How many gears does this transmission have?
This is a 10-speed automatic transmission, giving compatible builds a wide gear range for launch performance, drivability, and cruising.
Does this kit include a torque converter?
Yes. The torque converter is included. The advertised flash stall rating is listed as stock.
Does this kit include a transmission controller?
Yes. The transmission controller is included with this kit.
Does this kit include a wiring harness?
Yes. The wiring harness is included. Buyers should still confirm wiring integration, controller setup, and calibration requirements before installation.
Does this kit include a transmission cooler?
No. The transmission cooler is not included. However, the kit does include a cooler line adapter with 6AN fittings.
Does this kit include a flexplate?
No. The flexplate is not included. Buyers should confirm the correct flexplate for the LT crate motor, crankshaft, converter bolt pattern, and installation setup.
What is the first gear ratio?
The first gear ratio is 4.70:1, supporting enhanced off-the-line performance in compatible applications.
What is the top gear ratio?
The top gear ratio is 0.64:1, and the transmission includes three overdrive gears for efficient cruising in properly matched builds.
What is the output torque rating?
The Chevrolet Performance SuperMatic 10L90-E 19420480 is listed with a 650 lb.-ft. output torque rating.
What yoke style does this transmission use?
This transmission uses a slip-on yoke style and features a slip yoke-type tail shaft, supporting conventional prop shaft design in many older vehicles.
Is this a complete installation kit?
No. This kit includes the transmission, torque converter, controller, wiring harness, cooler line adapter with 6AN fittings, and production-style vent tube, but it does not include the flexplate, transmission cooler, transmission fluid, or dipstick. Additional vehicle-specific parts may be required.
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