Chevrolet Performance SuperMatic 8L90-E Transmissions

Chevrolet Performance SuperMatic 8L90-E transmissions have been adapted for use with the LT4 crate engines. Each of these 8-speed automatic transmissions feature a numerically high 4.56 first-gear ratio to offer strong take-off performance, while their wide 7.0:1 overall ratio helps enhance cruising efficiency.

Additional highlights of the SuperMatic 8L90-E transmissions:

* Four gear sets 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: 3.82
* Controller and harness included
* Torque converter included (engine-specific)

More From This Category

GM Performance Oil Pan Gasket, Holden LS One-piece, Silicone/Aluminum, LS, Each

GM Performance Oil Pan Gasket, Holden LS One-piece, Silicone/Aluminum, LS, Each

$75.00

GM Performance Crate Engine, LS 376/525 LS3 Long Block, Internal Balance, Hydraulic Roller, OE Roller, Aluminum Block and Cylinder Heads, Chevrolet,

GM Performance Crate Engine, LS 376/525 LS3 Long Block, Internal Balance, Hydraulic Roller, OE Roller, Aluminum Block and Cylinder Heads, Chevrolet,

$14,900.00

GM Performance Rocker Arm, Exhaust, 1.8 Ratio, Cast, Roller Fulcrum, Chevy, Small Block, LS7, Each

GM Performance Rocker Arm, Exhaust, 1.8 Ratio, Cast, Roller Fulcrum, Chevy, Small Block, LS7, Each

$30.00

GM Performance LS Engine Coolant Bypass Seal, Coolant Crossover Component, O-ring, Rubber, Black, Each

GM Performance LS Engine Coolant Bypass Seal, Coolant Crossover Component, O-ring, Rubber, Black, Each

$7.00

GM Performance LS Rocker Arm Hold-Down Bolts, GM Genuine Parts, Hex Head, Steel, Black Oxide, Designed for L92 and Cathedral Port Heads, EACH

GM Performance LS Rocker Arm Hold-Down Bolts, GM Genuine Parts, Hex Head, Steel, Black Oxide, Designed for L92 and Cathedral Port Heads, EACH

$10.00

GM Performance Automatic Transmission, SuperMatic 6L80-E, 3000-3400 Stall Converter, 650 lb. ft. Torque, Controller, Harness, Chevrolet, LS/LSX Crate

GM Performance Automatic Transmission, SuperMatic 6L80-E, 3000-3400 Stall Converter, 650 lb. ft. Torque, Controller, Harness, Chevrolet, LS/LSX Crate

$7,900.00