Welcome to the GM Performance Parts Transmissions page where you'll find genuine GM transmissions with performance torque convertors to help you put the power to the pavement. Transmissions from GM Performance Parts are brand–new–not cleaned–up rebuilds–and deliver smooth, dependable performance. And to make installation a snap, transmission controllers are available that include all the components you need. So check out the features and benefits below and find which transmission is best suited to your GM performance engine.
19212657
Transmission Controller, 4L60-E, 4L65-E, 4L80-E &
4L85-E Automatic
- Required when using a GM electronically controlled automatic transmission
- Includes wiring harness, software and connector for lap-top computer
- Controller allows full programming of shifting, as well as part-throttle, wide-open throttle and shift firmness control
- Comes pre–programmed–simply enter rear tire diameter and axle ratio
19156259
Hydra-Matic 4L60-E Four-Speed Automatic
Transmission (Gen III/IV)
- Electronically controlled four-speed overdrive transmission
- Suitable for engines producing up to 370 lb.-ft of torque
- Has a two-piece case and bolts up to engines with a Chevy V-8 bell housing bolt pattern
- Includes torque converter with stall speed of approximately 2300 rpm
- Gear ratios: 1st: 3.06, 2nd: 1.75, 3rd: 1.00, 4th: 0.70
19156260
Hydra-Matic 4L65-E Four-Speed Automatic
Transmission (LS series V-8)
- Similar in design to the 4L60-E
- “L65” electronically controlled four-speed overdrive transmission is suitable for LS series V-8 engines producing up to 380 lb.-ft. of torque
- Features heavy-duty upgrades including five-pinion gear sets, heat-treated stator shaft splines, induction-hardened turbine shaft, seven-plate clutch, shot-peened output shaft
19156257
Hydra-Matic 4L85-E Four-Speed Automatic
Transmission, 2WD
- The strongest 2WD performance transmission offered by GM Performance Parts
- Rated for a maximum torque output of 460 lb.-ft. in two-wheel-drive applications using a Gen I and II-style or big-block engine
- Die-cast aluminum case reduces weight to just 255 pounds
- Includes torque converter with stall speed of approximately
19154550
SuperMatic 4L85-E 4-Speed Transmission
- Newly designed for use on our ZZ572/720 crate engine
- All new parts, including additional clutch plates
- Improved valve body for firmer shifts
- Direct bolt-on for Gen 1 small block and all big blocks
- Gear ratios: 1st: 2.48, 2nd: 1.48, 3rd: 1.00, 4th: 0.75
NOTE: Use with electronic controller P/N 12497316 or 19212657.
