This is the 4L80E of choice for most applications up to 850 horsepower. This trans features all the components and upgrades of the SS model with the addition of a 300m billet steel input shaft, high strength billet clutch hub, extra capacity high energy clutch packs and bands as well as additional shift and durability modifications to handle Huge horsepower and torque. The SX transmission includes our 2500 stall torque converter, but can be optioned with stall speeds up to 4500rpm,Also available with upgrades for extreme applications beyond 1000HP, ask your sales person for details.


LS engine series style 1999 and later add $350.00. FULL MANUAL OPTION: For those not wishing to run a computer on this transmission and who want to shift manually we offer all models of our 4L80E with a full manual valve body. This option will also eliminate the torque converter clutch. This option can be added to the price of any of the above transmissions for $497.63. COMPUSHIFT transmission computer control system can be purchased separately for $1279.61

w/ Compushift control system and 2500 stall converter:


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