B&M’s Vacuum Modulator is fully adjustable, allowing you to tailor your shift points to within a range of 2-4 mph. Equipped with a gold irradiated finish and an O-ring seal to stop leaks. Comes supplied pre-adjusted for normal shift points.

Features:

Fully Adjustable.

Tailors To Custom Shift Points.

Comes Supplied With Pre-Adjusted Shift Points.

Note: If your engine does not make adequate vacuum you will not be able to make the stock or B&M modulator work properly; usually resulting in late, hard shifts.

Does B&M 20234 fit your vehicle?

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BUICK CADILLAC CHEVROLET GMC OLDSMOBILE PONTIAC

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Model

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EngineType

L4 ( 2.0 L / 122 ) L4 ( 2.3 L / 140 ) L4 ( 2.5 L / 151 ) L4 ( 2.5 L / 153 ) L6 ( 3.2 L / 194 ) L6 ( 3.8 L / 230 ) L6 ( 4.1 L / 250 ) L6 ( 4.8 L / 292 ) V6 ( 3.3 L / 200 ) V6 ( 3.7 L / 225 ) V6 ( 3.8 L / 229 ) V6 ( 3.8 L / 231 ) V6 ( 4.1 L / 252 ) V6 ( 4.3 L / 262 ) V6 ( 5.0 L / 305 ) V8 ( 4.3 L / 260 ) V8 ( 4.3 L / 262 ) V8 ( 4.3 L / 265 ) V8 ( 4.4 L / 267 ) V8 ( 4.6 L / 283 ) V8 ( 4.9 L / 300 ) V8 ( 4.9 L / 301 ) V8 ( 5.0 L / 305 ) V8 ( 5.0 L / 307 ) V8 ( 5.3 L / 327 ) V8 ( 5.4 L / 327 ) V8 ( 5.4 L / 330 ) V8 ( 5.6 L / 340 ) V8 ( 5.7 L / 348 ) V8 ( 5.7 L / 350 ) V8 ( 5.7 L / 5736 CC ) V8 ( 6.2 L / 379 ) V8 ( 6.4 L / 389 ) V8 ( 6.5 L / 396 ) V8 ( 6.6 L / 400 ) V8 ( 6.6 L / 401 ) V8 ( 6.6 L / 402 ) V8 ( 6.6 L / 403 ) V8 ( 6.7 L / 409 ) V8 ( 6.9 L / 421 ) V8 ( 7.0 L / 425 ) V8 ( 7.0 L / 427 ) V8 ( 7.0 L / 428 ) V8 ( 7.0 L / 429 ) V8 ( 7.4 L / 454 ) V8 ( 7.5 L / 455 ) V8 ( 7.7 L / 472 )

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Liter

2.0 2.3 2.5 3.2 3.3 3.7 3.8 4.1 4.3 4.4 4.6 4.8 4.9 5.0 5.3 5.4 5.6 5.7 6.2 6.4 6.5 6.6 6.7 6.9 7.0 7.4 7.5 7.7

Filter By
Aspiration

1975 CHEVROLET LAGUNA

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.6
SubModel: BASE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1972 CHEVROLET K20 PICKUP

CC: 4801
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.8
Aspiration: N
SubModel: BASE
Engine Vin: S
CUI: 292
EngineType: L6 ( 4.8 L / 292 )

1980 CHEVROLET K10 PICKUP

CC: 4097
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: CHEYENNE
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1966 CHEVROLET C20 PICKUP

CC: 4638
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.6
SubModel: BASE
CUI: 283
EngineType: V8 ( 4.6 L / 283 )

1978-1979 OLDSMOBILE CUTLASS SUPREME

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1969 CHEVROLET C20 PICKUP

CC: 6489
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.5
SubModel: BASE
CUI: 396
EngineType: V8 ( 6.5 L / 396 )

1972 OLDSMOBILE CUTLASS

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: CRUISER
EngineType: ALL

1972-1974 PONTIAC FIREBIRD

CC: 7456
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 7.5
Aspiration: N
SubModel: TRANS AM
Engine Vin: X
CUI: 455
EngineType: V8 ( 7.5 L / 455 )

1968 GMC K25/K2500 SUBURBAN

CC: 4097
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: BASE
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1969 GMC K35/K3500 PICKUP

CC: 6489
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.5
SubModel: BASE
CUI: 396
EngineType: V8 ( 6.5 L / 396 )

1979 CADILLAC DEVILLE

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 7.0
SubModel: CABRIOLET
CUI: 425
EngineType: V8 ( 7.0 L / 425 )

1967 OLDSMOBILE CUTLASS

CC: 6555
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.6
SubModel: TURNPIKE CRUISER
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1971 CHEVROLET CHEVELLE

CC: 5736
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: MALIBU
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1972 PONTIAC CATALINA

CC: 7456
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 7.5
SubModel: BROUGHAM
CUI: 455
EngineType: V8 ( 7.5 L / 455 )

1973 CHEVROLET NOVA

CC: 5737
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1979 CHEVROLET K20 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: CUSTOM DELUXE
EngineType: ALL

1976 CHEVROLET CAPRICE

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.6
SubModel: CLASSIC ESTATE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1975 CHEVROLET MONZA

CC: 2294
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 2.3
SubModel: S
CUI: 140
EngineType: L4 ( 2.3 L / 140 )

1981 GMC K3500 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1970-1971 CHEVROLET K20 SUBURBAN

CC: 5031
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.0
SubModel: BASE
CUI: 307
EngineType: V8 ( 5.0 L / 307 )

1979-1981 GMC C1500 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: HIGH SIERRA
EngineType: ALL

1969 OLDSMOBILE DELTA 88

CC: 5737
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: CUSTOM
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1987-1990 CHEVROLET BLAZER

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1980 CHEVROLET IMPALA

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: SPORT
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1967 PONTIAC FIREBIRD

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: 400
EngineType: ALL

1980 GMC C2500 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 7.4
SubModel: BASE
CUI: 454
EngineType: V8 ( 7.4 L / 454 )

1980 CHEVROLET CAPRICE

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: CLASSIC
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1980 CHEVROLET C10 PICKUP

CC: 4097
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: BIG TEN
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1986 CHEVROLET C30 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: SILVERADO
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1979-1980 GMC K2500 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.6
SubModel: BASE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1979-1981 GMC C1500 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1985 CHEVROLET K20 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: SILVERADO
EngineType: ALL

1987 CHEVROLET R30 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1975 CHEVROLET IMPALA

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 7.4
SubModel: CUSTOM
CUI: 454
EngineType: V8 ( 7.4 L / 454 )

1968 GMC C25/C2500 PICKUP

CC: 6489
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.5
Aspiration: N
SubModel: BASE
Engine Vin: Y
CUI: 396
EngineType: V8 ( 6.5 L / 396 )

1980 CHEVROLET CAPRICE

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.4
SubModel: CLASSIC
CUI: 267
EngineType: V8 ( 4.4 L / 267 )

1974 CHEVROLET C20 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1977 PONTIAC GRAND PRIX

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.6
SubModel: LJ
CUI: 403
EngineType: V8 ( 6.6 L / 403 )

1979-1980 GMC G25/G2500 VAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: RALLY
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1975 BUICK APOLLO

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: SR
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1976-1977 OLDSMOBILE CUTLASS

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.3
SubModel: S
CUI: 260
EngineType: V8 ( 4.3 L / 260 )

1966 OLDSMOBILE STARFIRE

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1972-1974 CHEVROLET BLAZER

CC: 4098
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: BASE
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1980 CHEVROLET C10 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.0
SubModel: BIG TEN
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1976-1978 CADILLAC SEVILLE

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1976 CHEVROLET IMPALA

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.6
SubModel: CUSTOM
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1966 CHEVROLET CHEVELLE

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: DELUXE
EngineType: ALL

1975 OLDSMOBILE CUTLASS

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: S
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1968 CHEVROLET EL CAMINO

CC: 3769
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 3.8
SubModel: BASE
CUI: 230
EngineType: L6 ( 3.8 L / 230 )

1985-1986 GMC C2500 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 7.4
SubModel: BASE
CUI: 454
EngineType: V8 ( 7.4 L / 454 )

1968 GMC C35/C3500 PICKUP

CC: 4097
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: BASE
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1973 CHEVROLET CAMARO

CC: 5737
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
Aspiration: N
SubModel: BASE
Engine Vin: L
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1970-1971 CHEVROLET P30 VAN

Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1973 CHEVROLET K20 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.8
SubModel: BASE
CUI: 292
EngineType: L6 ( 4.8 L / 292 )

1976-1980 OLDSMOBILE CUTLASS SALON

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1970-1971 CHEVROLET K30 PICKUP

CC: 6588
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.6
SubModel: BASE
CUI: 402
EngineType: V8 ( 6.6 L / 402 )

1968-1969 OLDSMOBILE CUTLASS

CC: 4098
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: BASE
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1973 GMC K15/K1500 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1976 CHEVROLET G20 VAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.8
SubModel: CHEVY VAN
CUI: 292
EngineType: L6 ( 4.8 L / 292 )

1980 PONTIAC FIREBIRD

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.0
SubModel: BASE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1968 OLDSMOBILE VISTA CRUISER

CC: 5737
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
Aspiration: N
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1989-1990 GMC C2500 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: SIERRA SLE
EngineType: ALL

1978 BUICK SKYLARK

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: CUSTOM
EngineType: ALL

1977 PONTIAC VENTURA

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.9
SubModel: SJ
CUI: 301
EngineType: V8 ( 4.9 L / 301 )

1980 CHEVROLET MALIBU

CC: 5031
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.0
SubModel: SPORT
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1973 CHEVROLET K20 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: BASE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1974 PONTIAC GRANDVILLE

CC: 7457
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 7.5
SubModel: BASE
CUI: 455
EngineType: V8 ( 7.5 L / 455 )

1975 CHEVROLET CAMARO

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: RS
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1971 CHEVROLET CHEVELLE

CC: 5031
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.0
SubModel: CONCOURS
CUI: 307
EngineType: V8 ( 5.0 L / 307 )

1982-1984 GMC C1500 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1980 CHEVROLET K20 PICKUP

CC: 4097
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: SILVERADO
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1970-1971 GMC K15/K1500 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.6
SubModel: BASE
CUI: 402
EngineType: V8 ( 6.6 L / 402 )

1973 OLDSMOBILE 98

CC: 7457
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 7.5
SubModel: REGENCY
CUI: 455
EngineType: V8 ( 7.5 L / 455 )

1967 BUICK GRAN SPORT

CC: 6555
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.6
SubModel: BASE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1978-1980 OLDSMOBILE CUTLASS CALAIS

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1980 CHEVROLET K30 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 7.4
SubModel: SILVERADO
CUI: 454
EngineType: V8 ( 7.4 L / 454 )

1975 CHEVROLET VEGA

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: PANEL EXPRESS
EngineType: ALL

1977-1978 CHEVROLET C10 SUBURBAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1978-1979 PONTIAC GRAND LEMANS

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: BASE
EngineType: ALL

1968 PONTIAC TEMPEST

CC: 6555
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.6
SubModel: CUSTOM
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1975 CHEVROLET MALIBU

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
Aspiration: N
SubModel: CLASSIC
Engine Vin: L
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1969 PONTIAC GRAND PRIX

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1975-1980 CHEVROLET P10 VAN

EngineType: ALL
SubModel: ALL

1979-1980 GMC G25/G2500 VAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: VANDURA
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1987-1989 CHEVROLET P20 VAN

Liter: 5.7
SubModel: STEP-VAN
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1975 OLDSMOBILE CUTLASS SUPREME

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.3
SubModel: BASE
CUI: 260
EngineType: V8 ( 4.3 L / 260 )

1982-1986 GMC K3500 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1981 CHEVROLET C10 PICKUP

CC: 5031
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.0
SubModel: CHEYENNE
CUI: 305
EngineType: V8 ( 5.0 L / 305 )

1968 GMC C15/C1500 SUBURBAN

CC: 4801
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.8
SubModel: BASE
CUI: 292
EngineType: L6 ( 4.8 L / 292 )

1971 CHEVROLET KINGSWOOD

CC: 5736
Liter: 5.7
SubModel: ESTATE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1990 GMC G35/G3500 VAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: VANDURA SPECIAL
EngineType: ALL

1980 PONTIAC LEMANS

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.9
SubModel: SAFARI
CUI: 301
EngineType: V8 ( 4.9 L / 301 )

1976 PONTIAC VENTURA

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.1
SubModel: BASE
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1975-1976 CHEVROLET K10 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1986 CHEVROLET C10 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: ALL
EngineType: ALL

1979-1981 CHEVROLET C20 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: CHEYENNE
EngineType: ALL

1973-1974 CHEVROLET CAPRICE

CC: 6556
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.6
SubModel: ESTATE
CUI: 400
EngineType: V8 ( 6.6 L / 400 )

1980 CHEVROLET K30 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 7.4
SubModel: CHEYENNE
CUI: 454
EngineType: V8 ( 7.4 L / 454 )

1972-1973 CHEVROLET C20 PICKUP

CC: 5031
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.0
SubModel: BASE
CUI: 307
EngineType: V8 ( 5.0 L / 307 )

1981 GMC G35/G3500 VAN

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
SubModel: RALLY
EngineType: ALL

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TCI 350001 - Adjustable Vacuum Modulator GM TH350/TH400

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B&M Adjustable Vacuum Modulator GM TH350 & TH400

Part Number: 130-20234

Specifications:

Adjust Vacuum and Shift Points

Does B&M 20234 fit your vehicle?

1975 CHEVROLET LAGUNA

1972 CHEVROLET K20 PICKUP

1980 CHEVROLET K10 PICKUP

1966 CHEVROLET C20 PICKUP

1978-1979 OLDSMOBILE CUTLASS SUPREME

1969 CHEVROLET C20 PICKUP

1972 OLDSMOBILE CUTLASS

1972-1974 PONTIAC FIREBIRD

1968 GMC K25/K2500 SUBURBAN

1969 GMC K35/K3500 PICKUP

1979 CADILLAC DEVILLE

1967 OLDSMOBILE CUTLASS

1971 CHEVROLET CHEVELLE

1972 PONTIAC CATALINA

1973 CHEVROLET NOVA

1979 CHEVROLET K20 SUBURBAN

1976 CHEVROLET CAPRICE

1975 CHEVROLET MONZA

1981 GMC K3500 PICKUP

1970-1971 CHEVROLET K20 SUBURBAN

1979-1981 GMC C1500 PICKUP

1969 OLDSMOBILE DELTA 88

1987-1990 CHEVROLET BLAZER

1980 CHEVROLET IMPALA

1967 PONTIAC FIREBIRD

1980 GMC C2500 SUBURBAN

1980 CHEVROLET CAPRICE

1980 CHEVROLET C10 PICKUP

1986 CHEVROLET C30 PICKUP

1979-1980 GMC K2500 SUBURBAN

1979-1981 GMC C1500 SUBURBAN

1985 CHEVROLET K20 SUBURBAN

1987 CHEVROLET R30 PICKUP

1975 CHEVROLET IMPALA

1968 GMC C25/C2500 PICKUP

1980 CHEVROLET CAPRICE

1974 CHEVROLET C20 SUBURBAN

1977 PONTIAC GRAND PRIX

1979-1980 GMC G25/G2500 VAN

1975 BUICK APOLLO

1976-1977 OLDSMOBILE CUTLASS

1966 OLDSMOBILE STARFIRE

1972-1974 CHEVROLET BLAZER

1980 CHEVROLET C10 PICKUP

1976-1978 CADILLAC SEVILLE

1976 CHEVROLET IMPALA

1966 CHEVROLET CHEVELLE

1975 OLDSMOBILE CUTLASS

1968 CHEVROLET EL CAMINO

1985-1986 GMC C2500 SUBURBAN

1968 GMC C35/C3500 PICKUP

1973 CHEVROLET CAMARO

1970-1971 CHEVROLET P30 VAN

1973 CHEVROLET K20 SUBURBAN

1976-1980 OLDSMOBILE CUTLASS SALON

1970-1971 CHEVROLET K30 PICKUP

1968-1969 OLDSMOBILE CUTLASS

1973 GMC K15/K1500 SUBURBAN

1976 CHEVROLET G20 VAN

1980 PONTIAC FIREBIRD

1968 OLDSMOBILE VISTA CRUISER

1989-1990 GMC C2500 PICKUP

1978 BUICK SKYLARK

1977 PONTIAC VENTURA

1980 CHEVROLET MALIBU

1973 CHEVROLET K20 SUBURBAN

1974 PONTIAC GRANDVILLE

1975 CHEVROLET CAMARO

1971 CHEVROLET CHEVELLE

1982-1984 GMC C1500 SUBURBAN

1980 CHEVROLET K20 PICKUP

1970-1971 GMC K15/K1500 SUBURBAN