Suncoast Performance
Suncoast TV Boost Valve Kit - .423" Bore Dia., Factory Style
Regular price
$33.95
Regular price
Sale price
$33.95
.423" Bore Dia., Factory Style
A common problem in GM 200-4R and 4L60 transmissions is burned bands and/or 3-4 clutches. This failure can be reduced by eliminating throttle boost oil leakage. Sonnax TV boost valve kits 77917-02K (.423" dia.), 77917-03K (.471" dia.) and 77917-04K (.500" dia.) eliminate these problems in a variety of applications. For V6 applications and smaller vehicles, use Sonnax TV boost valve kit 77917-02K.
- Throttle valve boost valve and sleeve are manufactured from hardened steel for better wear resistance
- Kits available in three sizes for .423", .471" and .500" diameters for a variety of applications
- Drop-in Zip Valve™ parts install quickly and easily
| Sonnax Part No. | Sleeve Dia. | Performance Applications |
|---|---|---|
| 77917-02K | .423" dia. | Minimum line pressure for V6 applications and smaller vehicles |
| 77917-03K | .471" dia. | Higher line pressure for towing and off-road |
| 77917-04K | .500" dia. | Maximum line pressure and shift feel for high performance applications |
- Valve
- Sleeve
Symptoms:
- Soft slide shifts
- 3-4 Clutch burned
- Reduced band life