Westminster Transmission

4L60E/700R4

WPT custom builds every transmission that leaves our shop, but we have a put together several levels to let you know what we offer, and a rough guideline on what you will need for your car. So feel free to contact us today at (714) 898-0089 and discuss what is exactly right for you and your car.

Level 1 (up to 400 hp)

Basic Overhaul kit including:
- New clutches/band
- New seals/sealing rings
- New gaskets
- New filter
New front sprag, updated to 28 element double cage style
New rear sprag, using late model wider style sprag
Beast sungear shell
- To prevent stripped splines and cracking in critical areas
Rebuilt valvebody
- 700R4
  - Including T.V. spring to prevent sticking of throttle valve
  - increaseed line pressure and updated acumulator springs for firmer shifts
  - Constant pressure valve bodies are availabe for conversions for premature failures due to mis adjusted cable adjustments. (contact us for details.)
- 4L60E
  - Redesigned lock up isolator valve to prevent valve body wear and premature converter failure
  - New solenoids and sensors
Hardened vein rings in pump and new slide spring to prevent chatter especially at high rpms
Corvette style rear planet with oil slinger to improve lube oil
Stock depth pan
Rebuilt Torque converter

Level 2 (up to 600 hp)

Basic Overhaul kit including:
- New clutches/band
- New seals/sealing rings
- New gaskets
- New filter
New front sprag, updated to 28 element double cage style
New rear sprag, using late model wider style sprag
Beast sungear shell
- To prevent stripped splines and cracking in critical areas
Rebuilt valvebody
- 700R4
  - Including T.V. spring to prevent sticking of throttle valve
  - increaseed line pressure and updated acumulator springs for firmer shifts
  - Constant pressure valve bodies are availabe for conversions for premature failures due to mis adjusted cable adjustments. (contact us for details.)
- 4L60E
  - Redesigned lock up isolator valve to prevent valve body wear and premature converter failure
  - New solenoids and sensors
Hardened vein rings in pump and new slide spring to prevent chatter especially at high rpm
High rev kit with stiffer return springs
Corvette servo piston
Upgraded 9 plate 3/4 clutch pack
5 pinion front planetary
5 pinion rear planetary
Stock depth pan
Rebuilt Torque converter with choice or stall
- available in lock up and non-lockup

Lelevel 3 (600-750 hp)

Basic Overhaul kit including:
- New clutches/band
- New seals/sealing rings
- New gaskets
- New filter
New front sprag, updated to 28 element double cage style
New rear sprag, using late model wider style sprag
Beast sungear shell
- To prevent stripped splines and cracking in critical areas
Rebuilt valvebody
- 700R4
  - Including T.V. spring to prevent sticking of throttle valve
  - increaseed line pressure and updated acumulator springs for firmer shifts
  - Constant pressure valve bodies are availabe for conversions for premature failures due to mis adjusted cable adjustments. (contact us for details.)
- 4L60E
  - Redesigned lock up isolator valve to prevent valve body wear and premature converter failure
  - New solenoids and sensors
Hardened vein rings in pump and new slide spring to prevent chatter especially at high rpm
High rev kit with stiffer return springs
Corvette servo piston
Upgraded 9 plate 3/4 clutch pack
5 pinion front planetary
5 pinion rear planetary
Cast aluminum pan
300M input shaft
300M output shaft
Super servo for OD with 40% more surface area
Rebuilt billet faced torque converter with choice or stall
- available in lock up and non-lockup

Upgrades:

Valvebodies: The valvebody is the brain of the transmsision, it determines shift timing and pressure. There are two optional upgrades WPT can add to your build, the full manual valvebody and the constant pressure.
- Full manual: This is most common for the car that will for a majority see competition usage or for those that prefer to have full control over their shifts.
- Constant pressure: This vavlebody is recommended for transplant aplications and when pressure and shift timing become an issue.

Accessories:

Compushift/TCI aftermarket controller. Electronically controlled transmissions require an electronic control unit (ECU) to shift and function properly. We recommend two stand alone controllers the compushift from HGM electronics and TCI ez tcu, both have ease of use and adaptability for any project.
Transmission coolers: WPT offers several sized coolers for whatever your load, whatever your horsepower. We even can make a custom cooler for your confined space or desert runner. We offer standard cooler or those with an integrated fan for spaces with no direct air flow.

AN fitting adapters: It is quite common in swaps or even in stock applications when the cooler lines will see high heat or abuse, such as near exhaust or when they are exposed to the elements, to use braided lines. stainless braided lines will take high heat and wont deteriorate over time and cause leaking. WPT stocks the correct fitting to use -6 or -8AN lines straight to your case. Note its is a common misconception that the case uses 1/4 pipe thread however that is incorrect.

Transmission yokes: Depending on your application, whether street strip or off road there are several yokes or couplers to choose from. WPT is a dealer for several suppliers and can get several levels from a basic forged standard u joint size to a fully billet, barrel hardened yoke with massive 1480 joints.

Shifters: Choosing a shifter is one of the keys to defining the style and apeal of the interior of your car. Whether it is a classic street car or a full race car WPT can hook you up with a shifter to suit your needs so you hit every shift on time every time.

Dipstick and tube: Either a standard style tube to give the factory like look or flexible style to allow universal mounting anywhere on your firewall.

Transmission mounts: Available in polyurethane, rubber or solid mounts, WPT can outfit your transmission with a mount that fits your exact car perfectly.

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4L60E/700R4