Share
SKU:77968
Suncoast Oversized Throttle Valve
Suncoast Oversized Throttle Valve
Description
Not compatible with early '82–'90 aluminum sleeve units.
A low throttle boost condition is a common complaint in vehicles with a vehicles with GM 4L60 transmissions. This loss of throttle boost oil creates poor line rise and accelerates 3-4 clutch and band failure. In late-model transmissions, the hardened steel throttle valve continuously oscillates in the cast iron valve body bore and eventually wears the three bore diameters. This wear allows throttle valve feed oil to leak past the valve spool and exhaust, resulting in a low throttle boost condition. This excessive leakage can be eliminated by reconditioning the bore and installing Sonnax oversized throttle valve 77968.
- The three spool diameters on this valve are slightly larger than the late-model OE valve, allowing the valve body bore to be modified to restore the hydraulic integrity of the assembly
- Reamer eliminates miscalibration or similar wear when exchanging with another used valve body
Symptoms:
- Low line rise
- 3-4 Clutch & band failure
Fitments
1993 Chevrolet Astro
1993 Chevrolet Caprice
1993 Chevrolet Impala
1993 Chevrolet S10
1993 Chevrolet S10 Blazer
1993 Chevrolet Suburban
1993 GMC S15 Jimmy
1993 GMC Safari
1993 GMC Sonoma
1993 GMC Suburban
1992 Cadillac Brougham
1992 Cadillac Fleetwood
1992 Chevrolet Astro
1992 Chevrolet Camaro
1992 Chevrolet Caprice
1992 Chevrolet Corvette
1992 Chevrolet Impala
1992 Chevrolet S10
1992 Chevrolet S10 Blazer
1992 Chevrolet Suburban
1992 GMC S15 Jimmy
1992 GMC Safari
1992 GMC Sonoma
1992 GMC Suburban
1992 Oldsmobile Custom Cruiser
1992 Pontiac Firebird
1991 Cadillac Brougham
1991 Cadillac Fleetwood
1991 Chevrolet Astro
1991 Chevrolet Camaro
1991 Chevrolet Caprice
1991 Chevrolet Corvette
1991 Chevrolet Impala
1991 Chevrolet S10
1991 Chevrolet S10 Blazer
1991 Chevrolet Suburban
1991 GMC S15 Jimmy
1991 GMC Safari
1991 GMC Sonoma
1991 GMC Suburban
1991 Oldsmobile Custom Cruiser
1991 Pontiac Firebird
Instructions
Specifications
SKU: 77968
GTIN: 840385619165
Manufacture Name: Suncoast Performance
Shipping Weight: 2 lb
Shipping Length: 4 in
Shipping Width: 4 in
Shipping Height: 4 in
EO Number:
Cross Reference #
Warranty
California Proposition 65 Warning
California Proposition 65 Warning - P65warnings.ca.gov
77968
Suncoast Oversized Throttle Valve
Not compatible with early '82–'90 aluminum sleeve units.
A low throttle boost condition is a common complaint in vehicles with a vehicles with GM 4L60 transmissions. This loss of throttle boost oil creates poor line rise and accelerates 3-4 clutch and band failure. In late-model transmissions, the hardened steel throttle valve continuously oscillates in the cast iron valve body bore and eventually wears the three bore diameters. This wear allows throttle valve feed oil to leak past the valve spool and exhaust, resulting in a low throttle boost condition. This excessive leakage can be eliminated by reconditioning the bore and installing Sonnax oversized throttle valve 77968.
- The three spool diameters on this valve are slightly larger than the late-model OE valve, allowing the valve body bore to be modified to restore the hydraulic integrity of the assembly
- Reamer eliminates miscalibration or similar wear when exchanging with another used valve body
Symptoms:
- Low line rise
- 3-4 Clutch & band failure
Suncoast Oversized Throttle Valve