Edelbrock Pro-Flo EFI Fuel Regulator Fitting -6 AN
Edelbrock Pro-Flo EFI Fuel Regulator Fitting -6 AN
Edelbrock Part # 3577 Regulator Fitting is a -6 AN fuel inlet fitting is for use with fuel mounted regulators that come included with all Pro-Flo EFI systems. The fitting will screw directly onto the fuel rail mounted fuel regulator and provide you with a -6 AN male nipple to connect your return fuel line to. This is the easiest and cleanest way to connect a return fuel line to your Edelbrock pro-Flo EFI system's fuel regulator.
End 2 Type Threaded, Straight
Thread Diameter 0.563 in
End 1 Type Threaded, Straight
Thread Type Coarse
California Residents: Proposition 65 Warning

Vehicle Fitment
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 Sierra years:
This product will fit the following Sierra 2500/3500 years:
This product will fit the following Silverado years:
This product will fit the following Silverado 2500/3500 years: