Chevy LS 4L60E Automatic Transmission, Up To 450 HP

• Dyno tested Street King 4L60E 4-speed automatic transmission with overdrive
• Street King transmissions suitable for street and mild strip use up to 450 hp
• Features Chevy LS bellhousing pattern with 300mm input shaft
• All new friction and steel plates, new intermediate band, and all new bushings
• Front pump rebuilt for higher transmission line pressure
• 4L60E valve body rebuilt with shift improvements and all new electronics
• New oil filter and chrome transmission pan with drain plug
• High performance 4L60E Corvette servo installed
• Dipstick tube, and torque converter sold separately
• Supports factory PCM or aftermarket stand alone controller for 4L60E
• Please note, residual transmission fluid may be present in the bag containing the transmission.  This does NOT indicate a transmission leak.  It is a result of the dyno testing of the transmission prior to packaging.

Our Street King Transmissions Save You Time and Money, Getting You on The Road Faster

The typical enthusiast tends to be a Jack of all trades sort. They have dabbled in engine work, handled their fair share of brake and suspension projects, and have probably tackled some interior and wiring fun as well. Where things tend to get dicey for many is aft of the flexplate, the transmission and rear axle. Going inside either of these major components for performance updates or even a simple rebuild from a zillion miles of service usually requires special service tools, a manual full of steps and specs, and a hospital-clean like work area. We know many that have tried to rebuild their own transmission or swap out a rear gear only to have to do it again (or third time’s the charm) to get it right if it is ever right again at all.

Sometimes it is best to simply have your transmission rebuilt instead of investing in all the tools and materials to do it yourself, especially if it is a “one and done” proposition and you’re not planning to rebuild transmissions as a side gig or hobby. The problem with this is often finding a solid and reliable shop that will do the work they say they are going to do and in the timeframe you expect. Today these are far and few between, much like a traditional engine machine shop. We know your time is valuable and when you need a new transmission for a project, or to replace your tired original, having the ability to simply order one of our Street King automatic transmissions, with no core return required, is often the best option.

A Street Friendly Overdrive Transmission That Supports Up To 450 HP

If you’re looking for a solid performing street transmission for your LS swapped classic pickup, muscle car, or hot rod build with the added benefit of overdrive for those long hauls, our 4L60E Street King transmission is the perfect solution to your needs. Our GM 4L60E transmission features all new internal wear components such as clutch discs, bands, thrust washers, seals, and more. Every 4L60E valve body includes all new electronics along with other shift improvement updates.

Externally, each GM 4L60E transmission includes a chrome oil pan with drain plug, making future transmission oil changes easier. Our Street King 4L60E is compatible with stock LS PCMs and wiring for plug and play installation or can be controlled via a stand alone controller for 4L60E transmissions if you are using a carburetor or aftermarket EFI system. Every transmission goes through a 23-point inspection process on an Axiline transmission dyno before leaving the factory to confirm shifting ability, line pressures, and more so when it lands on your door step you know it’s ready to go.

Our Street King 4L60E transmission uses the popular 27-spline output shaft, making it a drop in replacement for most any Chevy V8 engine application. Simply select the torque converter that best suits your needs, add a transmission dipstick assembly, and you’ll be in business. Of course, if you are building a project from the ground up, you may also need a flexplate, transmission cooler lines, transmission cooler, torque converter fasteners and other items as well to complete your installation.

Built To Last with No Core Return Required

Nobody wants to deal with trying to drain an old transmission of fluid, crating it up, and having some trucking line pick it up when it is convenient for them and not for you. With our Street King transmissions there is no core required. Nothing to send back, no need to sit and wait for any refund, just unbox your freshly built Street King 4L60E transmission and get back to your project. This is especially helpful if you’re building from nothing and do not have a core GM 4L60E transmission to even send back! Rest easy knowing our Street King transmissions are built by hand using the best parts and backed by the manufacturer’s one year warranty. To sum it up, our Street King transmissions are a great value for your project needs and will provide many miles of trouble free driving.

Valve Body:
Completely rebuilt valve body with shift kit and all new electronics

Washers/Bushings:
New washer set
All bushings replaced
New low reverse sprag
New dual cage, 29 element forward sprag

Clutches/Band:
All clutches replaced
New Intermediate Band
7 Stack 3-4 clutch pack
Complete Steel Module
Hardened sun shell

Other features:
Recalibrated front pump with hardened vane rings
Chrome transmission pan with drainplug
High performance "corvette" style servo
OEM 330mm input shaft
New Output Speed Sensor
27-spline output shaft
Seals are synthetic fluid compatible
Uses DEXRON 3 or DEXRON 6 (friction modifier needed if using DEXRON 6)