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Rochester Power Valve 56-2B
Rochester Power Valve 56-2B

Rochester Power Valve 56-2B

35 Review(s)
Your Price: $12.95
Part Number: 56-2B
Availability: In Stock
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Rochester 2G, 2GC, 4G, 4GC power valve. There are two versions of the 2G power valve. This one is .305" diameter (about 5/16"). 9/16" tall not counting the small stem at the top. Should fit most pre 1968 carburetors.

Generally doesn't work on marine applications.

Watch a video about this power valve:


SPECS:
  • Gasket = ID: .350" OD: .435" THK: .031"
  • Power Valve Diameter: .305" (approx. 5/16") 
  • Power Valve Overall length (minus stem): 9/16"

Rochester number: 7011989

Be sure your power piston moves freely. If bent, or binding, clean, or replace with a new power piston assembly .
Power piston assembly

MAKE
YEAR
MODEL
CARBURETOR NUMBER
TYPE
CARBURETOR KIT
 
 
 
17054656
 
 
 
 
17054657
 
 
 
 
17057358
 
 
 
 
17057359
 
 
 
 
17057360
 
 
 
 
17057380
 
BUICK
1957
EARLY 50, 60, 70
7010070
4GC
 
BUICK
1957
EARLY 50, 60, 70
7010070
4GC
 
BUICK
1957
LATE 50, 60, 70
7011570
4GC
 
BUICK
1957
LATE 50, 60, 70
7011570
4GC
 
BUICK
1958
EARLY 50, 60 70
7011600
4GC
 
BUICK
1958
EARLY 50, 60 70
7011600
4GC
 
BUICK
1958
LATE 50, 60, 70
7013100
4GC
 
BUICK
1958
LATE 50, 60, 70
7013100
4GC
 
BUICK
1959
4600, 4 700, 4800
7013044
4GC
 
BUICK
1959
4600, 4 700, 4800
7013044
4GC
 
BUICK
1960
4600, 4 700, 4800
7015040
4GC
 
BUICK
1960
4600, 4 700, 4800
7015040
4GC
 
BUICK
1961
ELECTRA, INVICTA, LE SABRE
7019040
4GC
 
BUICK
1961
ELECTRA, INVICTA, LE SABRE
7019040
4GC
 
BUICK
1961-62
SPECIAL A/T
7020043
4GC
BUICK
1961-62
SPECIAL A/T
7020043
4GC
BUICK
1961-62
SPECIAL S/T
7020045
4GC
BUICK
1961-62
SPECIAL S/T
7020045
4GC
BUICK
1961-63
215
7020043
4GC
BUICK
1961-63
215
7020045
4GC
BUICK
1962
8 LE SABRE
7020046
2GC
BUICK
1962
8 LE SABRE
7020047
2GC
BUICK
1962
8 LE SABRE
7020048
2GC
BUICK
1962
8 LE SABRE
7020049
2GC
BUICK
1962
ELECTRA, INVICTA, LE SABRE
7020040
4GC
 
BUICK
1962
ELECTRA, INVICTA, LE SABRE
7020040
4GC
 
BUICK
1962
ELECTRA, INVICTA, LE SABRE
7020041
4GC
 
BUICK
1962
ELECTRA, INVICTA, LE SABRE
7020041
4GC
 
BUICK
1963
8 LE SABRE
7023041
2GC
BUICK
1963
8 Le SABRE A/T
7023042
2GC
BUICK
1963
8 SPL A/T
7023044
4GC
BUICK
1963
8 SPL A/T
7023044
4GC
BUICK
1963
8 SPL A/T
7023044
4GC
BUICK
1963
8 SPL S/T
7023045
4GC
BUICK
1963
8 SPL S/T
7023045
4GC
BUICK
1963
8 SPL S/T
7023045
4GC
BUICK
1963
EARLY 8 LE SABRE
7023043
2GC
BUICK
1963
EARLY 8 STD
7023040
4GC
 
BUICK
1963
LATE 8 LE SABRE A/T
7023145
2GC
BUICK
1963
LATE 8 LE SABRE A/T
7023146
2GC
BUICK
1963
LATE 8 STD
7023143
4GC
 
BUICK
1963-65
EARLY 8 STD
7023040
4GC
 
BUICK
1963-65
LATE 8 STD
7023143
4GC
 
BUICK
1965
EARLY 401?
7025040
4GC
 
BUICK
1965
EARLY 401?
7025040
4GC
 
BUICK
1965
LATE 401?
7025140
4GC
 
BUICK
1966
340? A.I.R. A/T
7026040
4GC
 
BUICK
1966
340? A.I.R. A/T
7026040
4GC
 
BUICK
1966
340? A.I.R. A/T
7036048
2GC
BUICK
1966
340? A.I.R. A/T
7036248
2GC
BUICK
1966
EARLY 300? 340? A/T
7026046
2GC
BUICK
1966
EARLY 300? 340? S/T
7026047
2GC
BUICK
1966
EARLY 300? A.I.R. A/T
7036046
2GC
BUICK
1966
LATE 300? 340? A/T
7026146
2GC
BUICK
1966
LATE 300? 340? S/T
7026147
2GC
BUICK
1966
LATE 300? A.I.R. A/T
7036146
2GC
BUICK
1966
SPECIAL 225? A.I.R. A/T
7036144
2GC
BUICK
1966
SPECIAL 6 CYL 225? A/T
7026144
2GC
BUICK
1966
SPECIAL 6 CYL 225? S/T
7026145
2GC
BUICK
1966-67
300?, 340?
7027044
2GC
BUICK
1966-67
300?, 340?
7027045
2GC
BUICK
1966-67
300?, 340?
7027046
2GC
BUICK
1966-67
300?, 340?
7027049
2GC
BUICK
1966-67
300?, 340?
7037034
2GC
BUICK
1966-67
300?, 340?
7037044
2GC
BUICK
1966-67
SPECIAL 225?
7027041
2GC
BUICK
1967
SPECIAL 225?
7027040
2GC
BUICK
1968
LESABRE, SPECIAL 350? CANADA
7028140
2GV
BUICK
1968
LESABRE, SPECIAL 350? CANADA
7028141
2GV
BUICK
1968-69
LESABRE, SPECIAL 350?
7029141
2GV
BUICK
1969
LESABRE, SPECIAL 350?
7029140
2GV
CADILLAC
1957
AIR EARLY
7010101
4GC
CADILLAC
1957
AIR EARLY
7010101
4GC
CADILLAC
1957
AIR EARLY
7012001
4GC
CADILLAC
1957
AIR EARLY
7012001
4GC
CADILLAC
1957
EARLY
7010100
4GC
CADILLAC
1957
EARLY
7010100
4GC
CADILLAC
1957-1966
ALL
7012000
4GC
CADILLAC
1957-66
ALL
7012000
4GC
CADILLAC
1957-66
ALL
7012000
4GC
CADILLAC
1957-66
ALL
7012001
4GC
CADILLAC
1957-66
ALL
7012001
4GC
CADILLAC
1957-66
ALL
7012010
4GC
CADILLAC
1957-66
ALL
7012010
4GC
CADILLAC
1957-66
ALL
7012011
4GC
CADILLAC
1957-66
ALL
7012011
4GC
CADILLAC
1958
AIR EARLY
7012011
4GC
CADILLAC
1958
AIR EARLY
7012011
4GC
CADILLAC
1958
AIR LATE
7012811
4GC
CADILLAC
1958
AIR LATE
7012811
4GC
CADILLAC
1958
CENTER EARLY AIR TRI POWER
7012205
2GC
CADILLAC
1958
CENTER EARLY TRI POWER
7012202
2GC
CADILLAC
1958
CENTER LATE AIR
7012905
2GC
CADILLAC
1958
CENTER LATE TRI POWER
7012902
2GC
CADILLAC
1958
EARLY
7012010
4GC
CADILLAC
1958
EARLY
7012010
4GC
CADILLAC
1958
LATE
7012910
4GC
CADILLAC
1958
LATE
7012910
4GC

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