Holley Power Valve Single Stage Standard Flow 4-1/2"
Highlights
- Direct-Fit Replacement
- 4.5" Hg
- 1/2-28 Threaded Gasket
Holley 4-1/2" Standard Flow Single Stage Power Valve.
When you purchase the Holley 4-1/2" Standard Flow Single Stage Power Valve 125-45, you also receive a factory-correct 1/2-28 threaded gasket. As a direct-fit replacement, this Single Stage Power Valve restores the rate at which your lean fuel mixture flows. Measure the opening of your manifold vacuum before picking up a 4.5" Hg primary stage opening vacuum. Once installed, your beloved carb performance will return to new!
Features and Benefits:
- Sold Individually
- Includes 1/2-28 Threaded Gaskets
- 4.5" Hg Primary Stage Opening Vacuum
- Direct-Fit Replacement
Tech Tip: Divide your highest part throttle manifold vacuum reading by two and select the closest size smaller for an accurate power valve measurement (ex: 8" Hg of manifold vacuum would use a 3.5" Hg power valve).
California Residents: Proposition 65 Warning
Related Categories: Mustang Parts, Mustang Engine, Mustang Engine Hardware, Ford Bronco Parts, Ford F-100 Parts
Vehicle Fitment
This product will fit the following Bronco years:
This product will fit the following C10 years:
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
- 1980,
- 1981,
- 1982,
- 1983,
- 1984,
- 1985,
- 1986,
- 1987,
This product will fit the following F-100 years:
- 1948,
- 1949,
- 1950,
- 1951,
- 1952,
- 1953,
- 1954,
- 1955,
- 1956,
- 1957,
- 1958,
- 1959,
- 1960,
- 1961,
- 1962,
- 1963,
- 1964,
- 1965,
- 1966,
- 1967,
- 1968,
- 1969,
- 1970,
- 1971,
- 1972,
- 1973,
- 1974,
- 1975,
- 1976,
- 1977,
- 1978,
- 1979,
This product will fit the following Mustang years:
