FMBP 466174 Engine Valve Spring
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FMBP
 Performance

FMBP 466174 Engine Valve Spring

Brand FMBP 466174
Material Chrome silicon
Installed Height 1.800
Installed Height 46.00
Installed Pressure 112.0
Camshaft Type Hydraulic roller
Coil Bind Height 1.141
Coil Bind Height 29.00
Spring Open Height 1.300
Spring Open Height 33.00
Open Pressure 278.0
Inside Diameter 1.062
Inside Diameter 27.00
Outside Diameter 1.456
Outside Diameter 37.00
Grade Type Performance
Spring Type Single spring
Product line Performance
Fits Ford, Lincoln, and Mercury · 358 vehicles

Chrome silicon construction. Built for performance valve control in demanding engine setups.

Defined spring pressures. 112.0 installed pressure and 278.0 open pressure for setup accuracy.

Hydraulic roller ready. Configured for hydraulic roller camshaft applications.

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Performance valve spring for Ford and Mercury V8 applications

Melling valve spring 466174 is a performance single spring built with chrome silicon wire and a hydraulic roller camshaft profile in mind. It is listed for a wide range of Ford, Mercury, and Lincoln applications, including Mustang, Torino, and F-150 fitments with machining may be required notes.

Key features

  • Chrome silicon construction for performance use.
  • Single spring design for controlled valve operation.
  • Installed pressure of 112.0 and open pressure of 278.0.
  • Installed height of 1.800 and spring open height of 1.300.
  • Inside diameter of 1.062 and outside diameter of 1.456.
  • Fits hydraulic roller camshaft setups.

Detailed fitment and application

This Melling 466174 valve spring is intended for street, performance, and race-oriented engine builds that need a specific spring rate and dimensional setup. Compatible With 1969-1994 Ford and Mercury V8 applications, it appears across multiple body styles and platforms, including Ford Bronco, Ford E-Series vans, Ford F-Series trucks, Ford Mustang, Mercury Cougar, and Lincoln Continental. The fitment data repeatedly notes that machining may be required, so cylinder head and valvetrain preparation should be verified before installation. This part number 466174 is also associated with performance applications across the Ford and Mercury lineup.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What this part helps address

  • Valve float control in performance engine builds.
  • Inconsistent spring pressure during higher-rpm operation.
  • Valvetrain instability with hydraulic roller camshaft setups.
  • Spring fitment issues when a specific installed height is required.
  • Replacement needs for performance-oriented Ford and Mercury engines.

Installation notes and tips

Verify installed height, coil bind clearance, and spring pressure before assembly. The fitment data lists machining may be required for many applications, so inspect the cylinder head, retainers, and valvetrain geometry during setup. Confirm compatibility with the intended camshaft profile and measure all critical dimensions before final installation.

Quality assurance

Melling offers a range of valve springs for standard, heavy-duty, and race-ready use, and this 466174 spring is part of that performance lineup. Its chrome silicon construction and defined pressure specifications provide the technical detail needed for engine builders selecting a valve spring for Ford and Mercury applications.

This part fits 358 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelNotes
1994FordBroncoMachining May Be Required; Performance
1994FordE-150 EconolineMachining May Be Required; Performance
1994FordE-150 Econoline Club WagonMachining May Be Required; Performance
1994FordE-250 EconolineMachining May Be Required; Performance
1994FordE-350 EconolineMachining May Be Required; Performance
1994FordE-350 Econoline Club WagonMachining May Be Required; Performance
1994FordF-150Machining May Be Required; Performance
1994FordF-250Machining May Be Required; Performance
1994FordF-350Machining May Be Required; Performance
1993FordBroncoMachining May Be Required; Performance
1993FordE-150 EconolineMachining May Be Required; Performance
1993FordE-150 Econoline Club WagonMachining May Be Required; Performance
1993FordE-250 EconolineMachining May Be Required; Performance
1993FordE-350 EconolineMachining May Be Required; Performance
1993FordE-350 Econoline Club WagonMachining May Be Required; Performance
1993FordF-150Machining May Be Required; Performance
1993FordF-250Machining May Be Required; Performance
1993FordF-350Machining May Be Required; Performance
1992FordBroncoMachining May Be Required; Performance
1992FordE-150 EconolineMachining May Be Required; Performance
1992FordE-150 Econoline Club WagonMachining May Be Required; Performance
1992FordE-250 EconolineMachining May Be Required; Performance
1992FordE-350 EconolineMachining May Be Required; Performance
1992FordE-350 Econoline Club WagonMachining May Be Required; Performance
1992FordF-150Machining May Be Required; Performance
1992FordF-250Machining May Be Required; Performance
1992FordF-350Machining May Be Required; Performance
1991FordBroncoMachining May Be Required; Performance
1991FordE-150 EconolineMachining May Be Required; Performance
1991FordE-150 Econoline Club WagonMachining May Be Required; Performance
1991FordE-250 EconolineMachining May Be Required; Performance
1991FordE-250 Econoline Club WagonMachining May Be Required; Performance
1991FordE-350 EconolineMachining May Be Required; Performance
1991FordE-350 Econoline Club WagonMachining May Be Required; Performance
1991FordF-150Machining May Be Required; Performance
1991FordF-250Machining May Be Required; Performance
1991FordF-350Machining May Be Required; Performance
1991FordLTD Crown VictoriaMachining May Be Required; Performance
1990FordBroncoMachining May Be Required; Performance
1990FordE-150 EconolineMachining May Be Required; Performance
1990FordE-150 Econoline Club WagonMachining May Be Required; Performance
1990FordE-250 EconolineMachining May Be Required; Performance
1990FordE-250 Econoline Club WagonMachining May Be Required; Performance
1990FordE-350 EconolineMachining May Be Required; Performance
1990FordE-350 Econoline Club WagonMachining May Be Required; Performance
1990FordF-150Machining May Be Required; Performance
1990FordF-250Machining May Be Required; Performance
1990FordF-350Machining May Be Required; Performance
1990FordLTD Crown VictoriaMachining May Be Required; Performance
1989FordBroncoMachining May Be Required; Performance
1989FordE-150 EconolineMachining May Be Required; Performance
1989FordE-150 Econoline Club WagonMachining May Be Required; Performance
1989FordE-250 EconolineMachining May Be Required; Performance
1989FordE-250 Econoline Club WagonMachining May Be Required; Performance
1989FordE-350 EconolineMachining May Be Required; Performance
1989FordE-350 Econoline Club WagonMachining May Be Required; Performance
1989FordF-150Machining May Be Required; Performance
1989FordF-250Machining May Be Required; Performance
1989FordF-350Machining May Be Required; Performance
1989FordLTD Crown VictoriaMachining May Be Required; Performance
1988FordBroncoMachining May Be Required; Performance
1988FordE-150 EconolineMachining May Be Required; Performance
1988FordE-150 Econoline Club WagonMachining May Be Required; Performance
1988FordE-250 EconolineMachining May Be Required; Performance
1988FordE-250 Econoline Club WagonMachining May Be Required; Performance
1988FordE-350 EconolineMachining May Be Required; Performance
1988FordE-350 Econoline Club WagonMachining May Be Required; Performance
1988FordF-150Machining May Be Required; Performance
1988FordF-250Machining May Be Required; Performance
1988FordF-350Machining May Be Required; Performance
1988FordLTD Crown VictoriaMachining May Be Required; Performance
1987FordBroncoMachining May Be Required; Performance
1987FordE-150 EconolineMachining May Be Required; Performance
1987FordE-150 Econoline Club WagonMachining May Be Required; Performance
1987FordE-250 EconolineMachining May Be Required; Performance
1987FordE-250 Econoline Club WagonMachining May Be Required; Performance
1987FordE-350 EconolineMachining May Be Required; Performance
1987FordE-350 Econoline Club WagonMachining May Be Required; Performance
1987FordF-150Machining May Be Required; Performance
1987FordF-250Machining May Be Required; Performance
1987FordF-350Machining May Be Required; Performance
1987FordLTD Crown VictoriaMachining May Be Required; Performance
1986FordBroncoMachining May Be Required; Performance
1986FordE-150 EconolineMachining May Be Required; Performance
1986FordE-150 Econoline Club WagonMachining May Be Required; Performance
1986FordE-250 EconolineMachining May Be Required; Performance
1986FordE-250 Econoline Club WagonMachining May Be Required; Performance
1986FordE-350 EconolineMachining May Be Required; Performance
1986FordE-350 Econoline Club WagonMachining May Be Required; Performance
1986FordF-150Machining May Be Required; Performance
1986FordF-250Machining May Be Required; Performance
1986FordF-350Machining May Be Required; Performance
1985FordBroncoMachining May Be Required; Performance
1985FordE-150 EconolineMachining May Be Required; Performance
1985FordE-150 Econoline Club WagonMachining May Be Required; Performance
1985FordE-250 EconolineMachining May Be Required; Performance
1985FordE-250 Econoline Club WagonMachining May Be Required; Performance
1985FordE-350 EconolineMachining May Be Required; Performance
1985FordE-350 Econoline Club WagonMachining May Be Required; Performance
1985FordF-150Machining May Be Required; Performance
1985FordF-250Machining May Be Required; Performance
1985FordF-350Machining May Be Required; Performance
1984FordBroncoMachining May Be Required; Performance
1984FordE-150 EconolineMachining May Be Required; Performance
1984FordE-150 Econoline Club WagonMachining May Be Required; Performance
1984FordE-250 EconolineMachining May Be Required; Performance
1984FordE-250 Econoline Club WagonMachining May Be Required; Performance
1984FordE-350 EconolineMachining May Be Required; Performance
1984FordE-350 Econoline Club WagonMachining May Be Required; Performance
1984FordF-150Machining May Be Required; Performance
1984FordF-250Machining May Be Required; Performance
1984FordF-350Machining May Be Required; Performance
1984FordLTDMachining May Be Required; Performance
1983FordE-100 EconolineMachining May Be Required; Performance
1983FordE-100 Econoline Club WagonMachining May Be Required; Performance
1983FordE-150 EconolineMachining May Be Required; Performance
1983FordE-150 Econoline Club WagonMachining May Be Required; Performance
1983FordE-250 EconolineMachining May Be Required; Performance
1983FordE-250 Econoline Club WagonMachining May Be Required; Performance
1983FordE-350 EconolineMachining May Be Required; Performance
1983FordE-350 Econoline Club WagonMachining May Be Required; Performance
1983FordF-150Machining May Be Required; Performance
1983FordF-250Machining May Be Required; Performance
1983FordF-350Machining May Be Required; Performance
1983FordLTDMachining May Be Required; Performance
1982FordBroncoMachining May Be Required; Performance
1982FordE-100 EconolineMachining May Be Required; Performance
1982FordE-100 Econoline Club WagonMachining May Be Required; Performance
1982FordE-150 EconolineMachining May Be Required; Performance
1982FordE-150 Econoline Club WagonMachining May Be Required; Performance
1982FordE-250 EconolineMachining May Be Required; Performance
1982FordE-250 Econoline Club WagonMachining May Be Required; Performance
1982FordE-350 EconolineMachining May Be Required; Performance
1982FordE-350 Econoline Club WagonMachining May Be Required; Performance
1982FordF-150Machining May Be Required; Performance
1982FordF-250Machining May Be Required; Performance
1982FordF-350Machining May Be Required; Performance
1982FordLTDMachining May Be Required; Performance
1981FordBroncoMachining May Be Required; Performance
1981FordE-100 EconolineMachining May Be Required; Performance
1981FordE-100 Econoline Club WagonMachining May Be Required; Performance
1981FordE-150 EconolineMachining May Be Required; Performance
1981FordE-150 Econoline Club WagonMachining May Be Required; Performance
1981FordE-250 EconolineMachining May Be Required; Performance
1981FordE-250 Econoline Club WagonMachining May Be Required; Performance
1981FordE-350 EconolineMachining May Be Required; Performance
1981FordE-350 Econoline Club WagonMachining May Be Required; Performance
1981FordF-150Machining May Be Required; Performance
1981FordF-250Machining May Be Required; Performance
1981FordF-350Machining May Be Required; Performance
1981FordLTDMachining May Be Required; Performance
1981MercuryGrand MarquisMachining May Be Required; Performance
1981MercuryMarquisMachining May Be Required; Performance
1980FordBroncoMachining May Be Required; Performance
1980FordE-100 EconolineMachining May Be Required; Performance
1980FordE-100 Econoline Club WagonMachining May Be Required; Performance
1980FordE-150 EconolineMachining May Be Required; Performance
1980FordE-150 Econoline Club WagonMachining May Be Required; Performance
1980FordE-250 EconolineMachining May Be Required; Performance
1980FordE-250 Econoline Club WagonMachining May Be Required; Performance
1980FordE-350 EconolineMachining May Be Required; Performance
1980FordE-350 Econoline Club WagonMachining May Be Required; Performance
1980FordF-150Machining May Be Required; Performance
1980FordF-250Machining May Be Required; Performance
1980FordF-350Machining May Be Required; Performance
1980FordLTDMachining May Be Required; Performance
1980LincolnContinentalMachining May Be Required; Performance
1980LincolnMark VIMachining May Be Required; Performance
1979FordBroncoMachining May Be Required; Performance
1979FordE-100 EconolineMachining May Be Required; Performance
1979FordE-100 Econoline Club WagonMachining May Be Required; Performance
1979FordE-150 EconolineMachining May Be Required; Performance
1979FordE-150 Econoline Club WagonMachining May Be Required; Performance
1979FordE-250 EconolineMachining May Be Required; Performance
1979FordE-250 Econoline Club WagonMachining May Be Required; Performance
1979FordE-350 EconolineMachining May Be Required; Performance
1979FordE-350 Econoline Club WagonMachining May Be Required; Performance
1979FordF-100Machining May Be Required; Performance
1979FordF-150Machining May Be Required; Performance
1979FordF-250Machining May Be Required; Performance
1979FordF-350Machining May Be Required; Performance
1979FordLTDMachining May Be Required; Performance
1979FordLTD IIMachining May Be Required; Performance
1979FordRancheroMachining May Be Required; Performance
1979FordThunderbirdMachining May Be Required; Performance
1979MercuryCougarMachining May Be Required; Performance
1979MercuryGrand MarquisMachining May Be Required; Performance
1979MercuryMarquisMachining May Be Required; Performance
1978FordE-100 EconolineMachining May Be Required; Performance
1978FordE-100 Econoline Club WagonMachining May Be Required; Performance
1978FordE-150 EconolineMachining May Be Required; Performance
1978FordE-150 Econoline Club WagonMachining May Be Required; Performance
1978FordE-250 EconolineMachining May Be Required; Performance
1978FordE-250 Econoline Club WagonMachining May Be Required; Performance
1978FordE-350 EconolineMachining May Be Required; Performance
1978FordE-350 Econoline Club WagonMachining May Be Required; Performance
1978FordF-100Machining May Be Required; Performance
1978FordF-150Machining May Be Required; Performance
1978FordF-250Machining May Be Required; Performance
1978FordF-350Machining May Be Required; Performance
1978FordLTDMachining May Be Required; Performance
1978FordLTD IIMachining May Be Required; Performance
1978FordRancheroMachining May Be Required; Performance
1978FordThunderbirdMachining May Be Required; Performance
1978MercuryCougarMachining May Be Required; Performance
1978MercuryGrand MarquisMachining May Be Required; Performance
1978MercuryMarquisMachining May Be Required; Performance
1977FordCustom 500Machining May Be Required; Performance
1977FordE-100 EconolineMachining May Be Required; Performance
1977FordE-100 Econoline Club WagonMachining May Be Required; Performance
1977FordE-150 EconolineMachining May Be Required; Performance
1977FordE-150 Econoline Club WagonMachining May Be Required; Performance
1977FordE-250 EconolineMachining May Be Required; Performance
1977FordE-250 Econoline Club WagonMachining May Be Required; Performance
1977FordE-350 EconolineMachining May Be Required; Performance
1977FordE-350 Econoline Club WagonMachining May Be Required; Performance
1977FordF-100Machining May Be Required; Performance
1977FordF-150Machining May Be Required; Performance
1977FordF-250Machining May Be Required; Performance
1977FordF-350Machining May Be Required; Performance
1977FordGranadaMachining May Be Required; Performance
1977FordLTDMachining May Be Required; Performance
1977FordLTD IIMachining May Be Required; Performance
1977FordRancheroMachining May Be Required; Performance
1977FordThunderbirdMachining May Be Required; Performance
1977LincolnVersaillesMachining May Be Required; Performance
1977MercuryCougarMachining May Be Required; Performance
1977MercuryMonarchMachining May Be Required; Performance
1976FordCustom 500Machining May Be Required; Performance
1976FordE-100 EconolineMachining May Be Required; Performance
1976FordE-100 Econoline Club WagonMachining May Be Required; Performance
1976FordE-150 EconolineMachining May Be Required; Performance
1976FordE-150 Econoline Club WagonMachining May Be Required; Performance
1976FordE-250 EconolineMachining May Be Required; Performance
1976FordE-250 Econoline Club WagonMachining May Be Required; Performance
1976FordE-350 EconolineMachining May Be Required; Performance
1976FordEliteMachining May Be Required; Performance
1976FordGran TorinoMachining May Be Required; Performance
1976FordGranadaMachining May Be Required; Performance
1976FordLTDMachining May Be Required; Performance
1976FordRancheroMachining May Be Required; Performance
1976FordTorinoMachining May Be Required; Performance
1976MercuryCougarMachining May Be Required; Performance
1976MercuryMonarchMachining May Be Required; Performance
1976MercuryMontegoMachining May Be Required; Performance
1975FordCustom 500Machining May Be Required; Performance
1975FordE-100 EconolineMachining May Be Required; Performance
1975FordE-100 Econoline Club WagonMachining May Be Required; Performance
1975FordE-150 EconolineMachining May Be Required; Performance
1975FordE-150 Econoline Club WagonMachining May Be Required; Performance
1975FordE-250 EconolineMachining May Be Required; Performance
1975FordE-250 Econoline Club WagonMachining May Be Required; Performance
1975FordE-350 EconolineMachining May Be Required; Performance
1975FordEliteMachining May Be Required; Performance
1975FordGran TorinoMachining May Be Required; Performance
1975FordGranadaMachining May Be Required; Performance
1975FordLTDMachining May Be Required; Performance
1975FordRancheroMachining May Be Required; Performance
1975FordTorinoMachining May Be Required; Performance
1975MercuryCougarMachining May Be Required; Performance
1975MercuryMonarchMachining May Be Required; Performance
1975MercuryMontegoMachining May Be Required; Performance
1974FordCountry SedanMachining May Be Required; Performance
1974FordCountry SquireMachining May Be Required; Performance
1974FordCustom 500Machining May Be Required; Performance
1974FordGalaxie 500Machining May Be Required; Performance
1974FordGran TorinoMachining May Be Required; Performance
1974FordLTDMachining May Be Required; Performance
1974FordRanch WagonMachining May Be Required; Performance
1974FordRancheroMachining May Be Required; Performance
1974FordTorinoMachining May Be Required; Performance
1974MercuryColony ParkMachining May Be Required; Performance
1974MercuryCougarMachining May Be Required; Performance
1974MercuryMarquisMachining May Be Required; Performance
1974MercuryMontegoMachining May Be Required; Performance
1974MercuryMontereyMachining May Be Required; Performance
1973FordCountry SedanMachining May Be Required; Performance
1973FordCountry SquireMachining May Be Required; Performance
1973FordCustom 500Machining May Be Required; Performance
1973FordGalaxie 500Machining May Be Required; Performance
1973FordGran TorinoMachining May Be Required; Performance
1973FordLTDMachining May Be Required; Performance
1973FordMustangMachining May Be Required; Performance
1973FordRanch WagonMachining May Be Required; Performance
1973FordRancheroMachining May Be Required; Performance
1973FordTorinoMachining May Be Required; Performance
1973MercuryColony ParkMachining May Be Required; Performance
1973MercuryCougarMachining May Be Required; Performance
1973MercuryMarquisMachining May Be Required; Performance
1973MercuryMontegoMachining May Be Required; Performance
1973MercuryMontereyMachining May Be Required; Performance
1972FordCountry SedanMachining May Be Required; Performance
1972FordCountry SquireMachining May Be Required; Performance
1972FordCustomMachining May Be Required; Performance
1972FordCustom 500Machining May Be Required; Performance
1972FordGalaxie 500Machining May Be Required; Performance
1972FordGran TorinoMachining May Be Required; Performance
1972FordLTDMachining May Be Required; Performance
1972FordMustangMachining May Be Required; Performance
1972FordRanch WagonMachining May Be Required; Performance
1972FordRancheroMachining May Be Required; Performance
1972FordTorinoMachining May Be Required; Performance
1972MercuryColony ParkMachining May Be Required; Performance
1972MercuryCougarMachining May Be Required; Performance
1972MercuryMarquisMachining May Be Required; Performance
1972MercuryMontegoMachining May Be Required; Performance
1972MercuryMontereyMachining May Be Required; Performance
1971FordCountry SedanMachining May Be Required; Performance
1971FordCountry SquireMachining May Be Required; Performance
1971FordCustomMachining May Be Required; Performance
1971FordCustom 500Machining May Be Required; Performance
1971FordGalaxie 500Machining May Be Required; Performance
1971FordLTDMachining May Be Required; Performance
1971FordMustangMachining May Be Required; Performance
1971FordRanch WagonMachining May Be Required; Performance
1971FordRancheroMachining May Be Required; Performance
1971FordTorinoMachining May Be Required; Performance
1971MercuryColony ParkMachining May Be Required; Performance
1971MercuryCougarMachining May Be Required; Performance
1971MercuryCycloneMachining May Be Required; Performance
1971MercuryMarquisMachining May Be Required; Performance
1971MercuryMontegoMachining May Be Required; Performance
1971MercuryMontereyMachining May Be Required; Performance
1970FordCountry SedanMachining May Be Required; Performance
1970FordCountry SquireMachining May Be Required; Performance
1970FordCustomMachining May Be Required; Performance
1970FordCustom 500Machining May Be Required; Performance
1970FordFairlaneMachining May Be Required; Performance
1970FordFalconMachining May Be Required; Performance
1970FordGalaxie 500Machining May Be Required; Performance
1970FordLTDMachining May Be Required; Performance
1970FordMustangMachining May Be Required; Performance
1970FordRanch WagonMachining May Be Required; Performance
1970FordRancheroMachining May Be Required; Performance
1970FordTorinoMachining May Be Required; Performance
1970MercuryColony ParkMachining May Be Required; Performance
1970MercuryCougarMachining May Be Required; Performance
1970MercuryCycloneMachining May Be Required; Performance
1970MercuryMarquisMachining May Be Required; Performance
1970MercuryMontegoMachining May Be Required; Performance
1970MercuryMontereyMachining May Be Required; Performance
1969FordCountry SedanMachining May Be Required; Performance
1969FordCountry SquireMachining May Be Required; Performance
1969FordCustomMachining May Be Required; Performance
1969FordCustom 500Machining May Be Required; Performance
1969FordFairlaneMachining May Be Required; Performance
1969FordFalconMachining May Be Required; Performance
1969FordGalaxie 500Machining May Be Required; Performance
1969FordLTDMachining May Be Required; Performance
1969FordMustangMachining May Be Required; Performance
1969FordRanch WagonMachining May Be Required; Performance
1969FordRancheroMachining May Be Required; Performance
1969FordTorinoMachining May Be Required; Performance
1969MercuryColony ParkMachining May Be Required; Performance
1969MercuryCometMachining May Be Required; Performance
1969MercuryCougarMachining May Be Required; Performance
1969MercuryCycloneMachining May Be Required; Performance
1969MercuryMontegoMachining May Be Required; Performance