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B&M Adjustable Vacuum Modulator GM TH350 & TH400

Specifications:

Modulator Valve Finish

Gold iridited

Modulator Valve Material

Steel

Quantity

Sold individually

Manufacturer's Part Number:

20234

Adjust Vacuum and Shift Points

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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Year

1963 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990

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BUICK CADILLAC CHEVROLET GMC OLDSMOBILE PONTIAC

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Model

442 98 APOLLO ASTRE BEL AIR BISCAYNE BLAZER BLAZER K5 BONNEVILLE BROOKWOOD BROUGHAM C10 PICKUP C10 SUBURBAN C15 SUBURBAN C15/C1500 SUBURBAN C1500 PICKUP C1500 SUBURBAN C20 PICKUP C20 SUBURBAN C25 SUBURBAN C25/C2500 PICKUP C25/C2500 SUBURBAN C2500 PICKUP C2500 SUBURBAN C30 PICKUP C35/C3500 PICKUP C3500 PICKUP CABALLERO CALAIS CAMARO CAPRICE CATALINA CENTURION CENTURY CHEVELLE CHEVY II COMMERCIAL CHASSIS CORVETTE CUSTOM CRUISER CUTLASS CUTLASS CALAIS CUTLASS CRUISER CUTLASS SALON CUTLASS SUPREME CUTLASS TIARA DELMONT 88 DELTA 88 DEVILLE DYNAMIC EL CAMINO ELDORADO ELECTRA ESTATE WAGON EXECUTIVE F85 FIREBIRD FLEETWOOD G10 VAN G15/G1500 VAN G20 VAN G25/G2500 VAN G30 VAN G35/G3500 VAN GRAN SPORT GRAND AM GRAND LEMANS GRAND PRIX GRAND SAFARI GRANDVILLE GS GTO IMPALA JETSTAR 88 JIMMY K10 PICKUP K10 SUBURBAN K15 SUBURBAN K15/K1500 K15/K1500 SUBURBAN K1500 PICKUP K1500 SUBURBAN K20 PICKUP K20 SUBURBAN K25 PICKUP K25 SUBURBAN K25/K2500 PICKUP K25/K2500 SUBURBAN K2500 PICKUP K2500 SUBURBAN K30 PICKUP K35 PICKUP K35/K3500 PICKUP K3500 PICKUP K5 BLAZER KINGSWOOD LAGUNA LEMANS LESABRE MALIBU MONTE CARLO MONZA NOVA OMEGA P10 SERIES VAN P10 VAN P15/P1500 VAN P20 SERIES VAN P20 VAN P25/P2500 VAN P30 SERIES VAN P30 VAN P35 VAN P3500 VAN PHOENIX R10 PICKUP R1500 PICKUP R1500 SUBURBAN R20 PICKUP R20 SUBURBAN R2500 PICKUP R2500 SUBURBAN R30 PICKUP R3500 PICKUP REGAL RIVIERA SEVILLE SKYHAWK SKYLARK SPECIAL SPORTWAGON SPRINT STAR CHIEF STARFIRE SUBURBAN SUNBIRD TEMPEST TORONADO TOWNSMAN V10 PICKUP V1500 PICKUP V1500 SUBURBAN V20 PICKUP V20 SUBURBAN V2500 PICKUP V2500 SUBURBAN V30 PICKUP V3500 PICKUP VEGA VENTURA VISTA CRUISER WILDCAT

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2+2 2+2 SPYDER 225 350 400 442 454 SS 60 SPECIAL 60 SPECIAL BROUGHAM 75 75 FORMAL BASE BEAUVILLE BERLINETTA BIG TEN BONAVENTURE BROUGHAM BROUGHAM D'ELEGANCE BROUGHAM TALISMAN CABRIOLET CHEVY VAN CHEYENNE CLASSIC CLASSIC ESTATE CLASSIC LANDAU CLASSIC SPORT COLONNADE COLONNADE S CONCOURS CONCOURS ESTATE COSWORTH CRUISER CUSTOM CUSTOM DELUXE CUSTOM LANDAU D'ELEGANCE DELUXE ESPRIT ESTATE ESTATE WAGON F85 FORMAL FORMULA GRAN SPORT GREENBRIER GTO HEAVY HALF HI-CUBE HIGH SIERRA HO HOLIDAY HURST LANDAU LIMITED LJ LN LS LT LT RALLY SPORT LUXURY LUXUS LX MAGNAVAN MALIBU MIRAGE NOMAD NOVA SS PANEL EXPRESS PARK AVENUE PHAETON POLICE RALLY RALLY CAMPER SPECIAL RALLY SPORT RALLY STX REGENCY ROYALE RS S S3 SAFARI SAFARI LUXURY SALON SCOTTSDALE SIERRA SIERRA CLASSIC SIERRA GRANDE SIERRA SLE SIERRA SLX SILVERADO SJ SPECIAL SPORT SPORTVAN SPRINT SR SS STEP-VAN STINGRAY STREET COUPE SX T37 THE JUDGE TOWNE COUPE TOWNE COUPE CABRIOLET TOWNE COUPE SPORT TRANS AM TURNPIKE CRUISER VALUE VAN VANDURA VANDURA SPECIAL WT XSR Z28

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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

1976 CHEVROLET MALIBU

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

1975 CHEVROLET MALIBU

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 )

1971 BUICK CENTURION

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

1970-1971 PONTIAC FIREBIRD

CC: 5733
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 MALIBU

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 )

1973 BUICK CENTURION

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

1972-1974 PONTIAC FIREBIRD

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 )

1979-1980 GMC C3500 PICKUP

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

1978-1980 CHEVROLET MONTE CARLO

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

1969 CHEVROLET K20 SUBURBAN

CC: 5736
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 MALIBU

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

1969 GMC C1500 PICKUP

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 )

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: K
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1978-1979 BUICK CENTURY

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

1970 PONTIAC FIREBIRD

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 )

1974 CHEVROLET K20 SUBURBAN

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 )

1972 CHEVROLET G10 VAN

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

1967 CHEVROLET P10 SERIES VAN

CC: 4098
Liter: 4.1
SubModel: BASE
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1979-1980 GMC C3500 PICKUP

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

1968 GMC K25/K2500 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 )

1974 CHEVROLET MONTE CARLO

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

1970-1971 CHEVROLET K20 SUBURBAN

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

1978-1979 PONTIAC LEMANS

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

1979 CHEVROLET MALIBU

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

1981 GMC C1500 PICKUP

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

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 )

1975 PONTIAC FIREBIRD

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

1975 BUICK CENTURY

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

1968 CHEVROLET EL CAMINO

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

1980 CHEVROLET MONTE CARLO

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 3.8
SubModel: SPORT
CUI: 229
EngineType: V6 ( 3.8 L / 229 )

1974 PONTIAC FIREBIRD

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

1967 BUICK GRAN SPORT

CC: 5573
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.6
SubModel: BASE
CUI: 340
EngineType: V8 ( 5.6 L / 340 )

1969 CHEVROLET K20 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 )

1975 CHEVROLET G10 VAN

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

1976 CHEVROLET CAMARO

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

1990 CHEVROLET K3500 PICKUP

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

1966 CHEVROLET P20 SERIES VAN

CC: 4098
Liter: 4.1
SubModel: BASE
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1977 PONTIAC CATALINA

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

1981 GMC K2500 PICKUP

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

1979 GMC C3500 PICKUP

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

1973 GMC K25/K2500 SUBURBAN

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

1973 CHEVROLET MONTE CARLO

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

1968 GMC C25/C2500 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 CHEVROLET K20 SUBURBAN

CC: 5736
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 PONTIAC ASTRE

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

1988-1990 CHEVROLET C2500 PICKUP

CC: 5735
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: CHEYENNE
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1985 CHEVROLET K20 SUBURBAN

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

1969 PONTIAC LEMANS

CC: 5733
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 5.7
SubModel: SAFARI
CUI: 350
EngineType: V8 ( 5.7 L / 350 )

1979 CHEVROLET MALIBU

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

1980 CHEVROLET K20 PICKUP

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

1968 GMC C1500 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 )

1971 PONTIAC GRANDVILLE

CC: 7456
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 OLDSMOBILE CUTLASS SUPREME

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

1973 CHEVROLET CAMARO

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

1972 CHEVROLET C10 SUBURBAN

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 )

1970 PONTIAC FIREBIRD

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

1980 BUICK CENTURY

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

1979-1980 GMC K3500 PICKUP

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

1969 CHEVROLET EL CAMINO

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

1978-1980 CHEVROLET MONZA

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

1976 CHEVROLET MONTE CARLO

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

1980 PONTIAC FIREBIRD

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

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 )

1982 CHEVROLET K10 PICKUP

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

1973 CHEVROLET K20 SUBURBAN

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

1974 CHEVROLET G10 VAN

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 GMC C15/C1500 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 )

1976 CHEVROLET CAMARO

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

1977-1978 GMC K15 SUBURBAN

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

1987 CHEVROLET V10 PICKUP

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

1972 PONTIAC LEMANS

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

1975 CHEVROLET NOVA

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 4.3
SubModel: CUSTOM
CUI: 262
EngineType: V8 ( 4.3 L / 262 )

1972 CHEVROLET KINGSWOOD

CC: 4097
Liter: 4.1
SubModel: BASE
CUI: 250
EngineType: L6 ( 4.1 L / 250 )

1965-1967 CHEVROLET P20 SERIES VAN

CC: 4801
Liter: 4.8
SubModel: BASE
CUI: 292
EngineType: L6 ( 4.8 L / 292 )

1973 GMC K25/K2500 SUBURBAN

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

1978 PONTIAC CATALINA

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

1979-1980 GMC K2500 PICKUP

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

1968 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 )

1982 CHEVROLET G10 VAN

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

1989-1990 GMC C3500 PICKUP

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

1975-1978 GMC P35 VAN

EngineType: ALL
SubModel: ALL

1973-1974 GMC SPRINT

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

1973 GMC G25/G2500 VAN

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

1979-1981 GMC C1500 SUBURBAN

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

1976 GMC C1500 PICKUP

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 EL CAMINO

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

1965-1967 PONTIAC CATALINA

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

1969-1972 GMC K25/K2500 SUBURBAN

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

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 )

1977 PONTIAC GRAND PRIX

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

1974 CHEVROLET MONTE CARLO

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

1972-1974 PONTIAC BONNEVILLE

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

1973 GMC C25/C2500 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 )

1973 CHEVROLET K20 SUBURBAN

CC: 7439
Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 7.4
Aspiration: N
SubModel: BASE
Engine Vin: Z
CUI: 454
EngineType: V8 ( 7.4 L / 454 )

1979 CHEVROLET CAPRICE

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

1981 CHEVROLET K30 PICKUP

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

1976 PONTIAC ASTRE

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

1979-1981 GMC C1500 PICKUP

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

1988-1990 CHEVROLET C2500 PICKUP

Fitment_Note: Must Have Adequate Vacuum To Make Modulator Work Properly
Liter: 6.2
SubModel: CHEYENNE
CUI: 379
EngineType: V8 ( 6.2 L / 379 )

1981 CHEVROLET K20 SUBURBAN

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

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Some parts are not legal for use in California or other states with similar laws / regulations

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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?

1976 CHEVROLET MALIBU

1975 CHEVROLET MALIBU

1971 BUICK CENTURION

1970-1971 PONTIAC FIREBIRD

1976 CHEVROLET MALIBU

1973 BUICK CENTURION

1972-1974 PONTIAC FIREBIRD

1979-1980 GMC C3500 PICKUP

1978-1980 CHEVROLET MONTE CARLO

1969 CHEVROLET K20 SUBURBAN

1976 CHEVROLET MALIBU

1969 GMC C1500 PICKUP

1973 CHEVROLET CAMARO

1978-1979 BUICK CENTURY

1970 PONTIAC FIREBIRD

1974 CHEVROLET K20 SUBURBAN

1972 CHEVROLET G10 VAN

1967 CHEVROLET P10 SERIES VAN

1979-1980 GMC C3500 PICKUP

1968 GMC K25/K2500 SUBURBAN

1974 CHEVROLET MONTE CARLO

1970-1971 CHEVROLET K20 SUBURBAN

1978-1979 PONTIAC LEMANS

1979 CHEVROLET MALIBU

1981 GMC C1500 PICKUP

1973 CHEVROLET CAMARO

1975 PONTIAC FIREBIRD

1975 BUICK CENTURY

1968 CHEVROLET EL CAMINO

1980 CHEVROLET MONTE CARLO

1974 PONTIAC FIREBIRD

1967 BUICK GRAN SPORT

1969 CHEVROLET K20 SUBURBAN

1975 CHEVROLET G10 VAN

1976 CHEVROLET CAMARO

1990 CHEVROLET K3500 PICKUP

1966 CHEVROLET P20 SERIES VAN

1977 PONTIAC CATALINA

1981 GMC K2500 PICKUP

1979 GMC C3500 PICKUP

1973 GMC K25/K2500 SUBURBAN

1973 CHEVROLET MONTE CARLO

1968 GMC C25/C2500 SUBURBAN

1969 CHEVROLET K20 SUBURBAN

1976 PONTIAC ASTRE

1988-1990 CHEVROLET C2500 PICKUP

1985 CHEVROLET K20 SUBURBAN

1969 PONTIAC LEMANS

1979 CHEVROLET MALIBU

1980 CHEVROLET K20 PICKUP

1968 GMC C1500 PICKUP

1971 PONTIAC GRANDVILLE

1975 OLDSMOBILE CUTLASS SUPREME

1973 CHEVROLET CAMARO

1972 CHEVROLET C10 SUBURBAN

1970 PONTIAC FIREBIRD

1980 BUICK CENTURY

1979-1980 GMC K3500 PICKUP

1969 CHEVROLET EL CAMINO

1978-1980 CHEVROLET MONZA

1976 CHEVROLET MONTE CARLO

1980 PONTIAC FIREBIRD

1967 BUICK GRAN SPORT

1982 CHEVROLET K10 PICKUP

1973 CHEVROLET K20 SUBURBAN

1974 CHEVROLET G10 VAN

1974 GMC C15/C1500 SUBURBAN

1976 CHEVROLET CAMARO

1977-1978 GMC K15 SUBURBAN

1987 CHEVROLET V10 PICKUP

1972 PONTIAC LEMANS

1975 CHEVROLET NOVA