Trans-Dapt Performance Products' SWIRL-TORQUE TBI Spacers get sandwiched between your intake manifold, and your TBI system, and dramatically improve engine torque, and throttle response.

Trans-Dapt's Throttle Body Spacers are 50 STATE LEGAL (EXCLUDING 2539, 2639, 2737, 2739), and covered by The C.A.R.B. Executive Order #D-578.
 
Part # ApplicationDescriptionInlet DiameterOutlet Diameter Media
2535
 
Chevrolet C1500 1990

Liter: 7.4

 
Chevrolet C3500 1988 to 1990

Liter: 7.4

 
Chevrolet G30 1988 to 1990

Liter: 7.4

 
Chevrolet K3500 1988 to 1990

Liter: 7.4

 
Chevrolet P30 1987 to 1990

Liter: 7.4

 
Chevrolet R2500 Suburban 1989 to 1990

Liter: 7.4

 
Chevrolet R3500 1989 to 1990

Liter: 7.4

 
Chevrolet V2500 Suburban 1990

Liter: 7.4

 
Chevrolet V3500 1989 to 1990

Liter: 7.4

 
GMC C3500 1988 to 1990

Liter: 7.4

 
GMC K3500 1988 to 1990

Liter: 7.4

 
GMC R2500 Suburban 1987 to 1990

Liter: 7.4

 
GMC R3500 1987 to 1990

Liter: 7.4

 
GMC V3500 1987 to 1990

Liter: 7.4

 
Chevrolet R2500 1989

Liter: 7.4

 
GMC R2500 1987 to 1989

Liter: 7.4

 
Chevrolet R20 1987 to 1988

Liter: 7.4

 
Chevrolet R20 Suburban 1987 to 1988

Liter: 7.4

 
Chevrolet R30 1987 to 1988

Liter: 7.4

 
Chevrolet V20 Suburban 1987 to 1988

Liter: 7.4

 
Chevrolet V30 1987 to 1988

Liter: 7.4

1987-90 7.4L Chevy/GMC Trucks/SUVs and Motorhomes- SWIRL-TORQUE Throttle Body Spacer
Photo Installation Instructions
$52.46
2536
 
Chevrolet C2500 1991 to 1995

Liter: 7.4

 
Chevrolet C2500 Suburban 1992 to 1995

Liter: 7.4

 
Chevrolet C3500 1991 to 1995

Liter: 7.4

 
Chevrolet G30 1991 to 1995

Liter: 7.4

 
Chevrolet K2500 1991 to 1995

Liter: 7.4

 
Chevrolet K2500 Suburban 1992 to 1995

Liter: 7.4

 
Chevrolet K3500 1991 to 1995

Liter: 7.4

 
Chevrolet P30 1991 to 1995

Liter: 7.4

 
GMC C2500 1991 to 1995

Liter: 7.4

 
GMC C2500 Suburban 1992 to 1995

Liter: 7.4

 
GMC C3500 1991 to 1995

Liter: 7.4

 
GMC K2500 1991 to 1995

Liter: 7.4

 
GMC K2500 Suburban 1992 to 1995

Liter: 7.4

 
GMC K3500 1991 to 1995

Liter: 7.4

 
Chevrolet C1500 1991 to 1993

Liter: 7.4

 
Chevrolet R2500 Suburban 1991

Liter: 7.4

 
Chevrolet R3500 1991

Liter: 7.4

 
Chevrolet V3500 1991

Liter: 7.4

 
GMC R2500 Suburban 1991

Liter: 7.4

 
GMC R3500 1991

Liter: 7.4

 
GMC V3500 1991

Liter: 7.4

1991-95 4.3L V6 or 5.0L, 5.7L V8 Chevy/GMC Trucks and SUVs- SWIRL-TORQUE Throttle Body Spacer
Photo Installation Instructions
$98.43
2533
 
Chevrolet Blazer 1987 to 1991

Liter: 5.7, 5.0

 
Chevrolet C1500 1988 to 1991

Liter: 4.3, 5.0, 5.7

 
Chevrolet C2500 1988 to 1991

Liter: 4.3, 5.0, 5.7

 
Chevrolet C3500 1988 to 1991

Liter: 5.7

 
Chevrolet G10 1986 to 1991

Liter: 4.3, 5.0, 5.7

 
Chevrolet G20 1986 to 1991

Liter: 4.3, 5.0, 5.7

 
Chevrolet G30 1986 to 1991

Liter: 4.3, 5.7

 
Chevrolet K1500 1988 to 1991

Liter: 4.3, 5.0, 5.7

 
Chevrolet K2500 1988 to 1991

Liter: 4.3, 5.0, 5.7

 
Chevrolet K3500 1988 to 1991

Liter: 5.7

 
Chevrolet P30 1986 to 1991

Liter: 4.3, 5.7

 
Chevrolet R1500 Suburban 1989 to 1991

Liter: 5.7

 
Chevrolet R2500 Suburban 1989 to 1991

Liter: 5.7

 
Chevrolet R3500 1989 to 1991

Liter: 5.7

 
Chevrolet S10 1988 to 1991

Liter: 4.3

 
Chevrolet S10 Blazer 1988 to 1991

Liter: 4.3

 
Chevrolet V1500 Suburban 1989 to 1991

Liter: 5.7

 
Chevrolet V2500 Suburban 1989 to 1991

Liter: 5.7

 
Chevrolet V3500 1989 to 1991

Liter: 5.7

 
GMC C1500 1986 to 1991

Liter: 5.7, 4.3, 5.0

 
GMC C2500 1986 to 1991

Liter: 4.3, 5.0, 5.7

 
GMC C3500 1986 to 1991

Liter: 5.7, 5.0

 
GMC Jimmy 1986 to 1991

Liter: 5.7, 5.0

 
GMC K1500 1986 to 1991

Liter: 5.7, 4.3, 5.0

 
GMC K2500 1986 to 1991

Liter: 5.7, 4.3, 5.0

 
GMC K3500 1986 to 1991

Liter: 5.7

 
GMC R1500 Suburban 1987 to 1991

Liter: 5.7, 5.0

 
GMC R2500 Suburban 1987 to 1991

Liter: 5.7

 
GMC R3500 1987 to 1991

Liter: 5.7

 
GMC S15 Jimmy 1988 to 1991

Liter: 4.3

 
GMC Safari 1986 to 1991

Liter: 4.3

 
GMC Sonoma 1991

Liter: 4.3

 
GMC V1500 Suburban 1987 to 1991

Liter: 5.7

 
GMC V2500 Suburban 1987 to 1991

Liter: 5.7

 
GMC V3500 1987 to 1991

Liter: 5.7

 
GMC S15 1988 to 1990

Liter: 4.3

 
Chevrolet P20 1986 to 1989

Liter: 5.7

 
GMC R2500 1987 to 1989

Liter: 5.7, 4.3, 5.0

 
Chevrolet R10 Suburban 1987 to 1988

Liter: 5.7, 5.0

 
Chevrolet R20 1987 to 1988

Liter: 5.7, 4.3, 5.0

 
Chevrolet R20 Suburban 1987 to 1988

Liter: 5.7

 
Chevrolet R30 1987 to 1988

Liter: 5.7

 
Chevrolet V10 Suburban 1987 to 1988

Liter: 5.7

 
Chevrolet V20 Suburban 1987 to 1988

Liter: 5.7

 
Chevrolet V30 1987 to 1988

Liter: 5.7

 
Chevrolet R10 1987

Liter: 4.3, 5.0, 5.7

 
Chevrolet V10 1987

Liter: 4.3, 5.0, 5.7

 
Chevrolet V20 1987

Liter: 5.7

 
GMC Caballero 1986 to 1987

Liter: 5.0, 4.3

 
GMC R1500 1987

Liter: 5.0, 4.3, 5.7

 
GMC V1500 1987

Liter: 4.3, 5.7, 5.0

 
GMC V2500 1987

Liter: 5.7

 
Chevrolet C10 1986

Liter: 5.0, 5.7, 4.3

 
Chevrolet C10 Suburban 1986

Liter: 5.0, 5.7

 
Chevrolet C20 1986

Liter: 4.3, 5.0, 5.7

 
Chevrolet C20 Suburban 1986

Liter: 5.0, 5.7

 
Chevrolet C30 1986

Liter: 5.0, 5.7

 
Chevrolet K10 1986

Liter: 4.3, 5.0, 5.7

 
Chevrolet K10 Suburban 1986

Liter: 5.7, 5.0

 
Chevrolet K20 1986

Liter: 5.7

 
Chevrolet K20 Suburban 1986

Liter: 5.0, 5.7

 
Chevrolet K30 1986

Liter: 5.7

 
Chevrolet K5 Blazer 1986

Liter: 5.0, 5.7

 
GMC C1500 Suburban 1986

Liter: 5.0, 5.7

 
GMC C2500 Suburban 1986

Liter: 5.0, 5.7

 
GMC K1500 Suburban 1986

Liter: 5.7

 
GMC K2500 Suburban 1986

Liter: 5.7

1986-91 Chevy/GMC Trucks and SUVs with 4.3L V6 or 5.0L, 5.7L V8- SWIRL-TORQUE Throttle Body Spacer
Photo Installation Instructions
$52.46
2534
 
Chevrolet Blazer 1992 to 1995

Liter: 4.3, 5.7

 
Chevrolet C1500 1992 to 1995

Liter: 5.0, 5.7, 4.3

 
Chevrolet C1500 Suburban 1992 to 1995

Liter: 5.7

 
Chevrolet C2500 1992 to 1995

Liter: 5.0, 5.7, 4.3

 
Chevrolet C2500 Suburban 1992 to 1995

Liter: 5.7

 
Chevrolet C3500 1992 to 1995

Liter: 5.7

 
Chevrolet G10 1992 to 1995

Liter: 4.3, 5.0, 5.7

 
Chevrolet G20 1992 to 1995

Liter: 5.0, 5.7, 4.3

 
Chevrolet G30 1992 to 1995

Liter: 5.7, 4.3

 
Chevrolet K1500 1992 to 1995

Liter: 5.7, 4.3, 5.0

 
Chevrolet K1500 Suburban 1992 to 1995

Liter: 5.7

 
Chevrolet K2500 1992 to 1995

Liter: 4.3, 5.0, 5.7

 
Chevrolet K2500 Suburban 1992 to 1995

Liter: 5.7

 
Chevrolet K3500 1992 to 1995

Liter: 5.7

 
Chevrolet P30 1992 to 1995

Liter: 4.3, 5.7

 
Chevrolet S10 1992 to 1995

Liter: 4.3

 
Chevrolet Tahoe 1995

Liter: 5.7

 
GMC C1500 1992 to 1995

Liter: 5.0, 5.7, 4.3

 
GMC C1500 Suburban 1992 to 1995

Liter: 5.7

 
GMC C2500 1992 to 1995

Liter: 5.0, 5.7, 4.3

 
GMC C2500 Suburban 1992 to 1995

Liter: 5.7

 
GMC C3500 1992 to 1995

Liter: 5.7

 
GMC Jimmy 1992 to 1995

Liter: 4.3

 
GMC K1500 1992 to 1995

Liter: 5.0, 5.7, 4.3

 
GMC K1500 Suburban 1992 to 1995

Liter: 5.7

 
GMC K2500 1992 to 1995

Liter: 5.7, 4.3, 5.0

 
GMC K2500 Suburban 1992 to 1995

Liter: 5.7

 
GMC K3500 1992 to 1995

Liter: 5.7

 
GMC P3500 1992 to 1995

Liter: 5.7, 4.3

 
GMC Sonoma 1992 to 1995

Liter: 4.3

 
GMC Yukon 1992 to 1995

Liter: 5.7

 
Chevrolet S10 Blazer 1992 to 1994

Liter: 4.3

1992-95 Chevy/GMC Trucks and SUVs with 4.3L V6 or 5.0L, 5.7L V8- SWIRL-TORQUE Throttle Body Spacer
Photo Installation Instructions
$52.46

Trans-Dapt Performance Products' SWIRL-TORQUE Throttle Body Injection (TBI) spacers get sandwiched between your intake manifold, and your TBI system, and dramatically improve the amount and quality of the air/fuel mixture available for combustion.Improving your engines ability to take in fresh air and fuel is the first ,and most critical step in improving both your performance AND fuel efficiency.Vehicle owners who have installed spacers with Swirl-Torque technology on their BB Chevy engines have shown fuel efficiency increases of approximately 2 MPG.Although we still offer our original "Smooth Bore", and "Wide Open" plenum MPFI spacers, our exclusive Swirl-Torque design spacers far surpass all other spacers in both performance and popularity.

 
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