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HOW-98521-K31 PART NUMBER
Howards Cams 98521-K31 Valve Spring Kit, 3/8" Valve Stem$217.95Valve Spring kit, 3/8 Valve Stem, .670" Max lift, Hydraulic Roller Valve Springs, 7 Degree Retainers, 7 Degree Valve Locks, Kit
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HOW-98521 PART NUMBER
Howards Dual 1.475 Valve Springs w/Damper 98521$137.95Fits AMC V8 / BB Chevy / BB Chrysler / Ford 351W 351C 400M / Ford FE / Ford 429-460, Dual Spring, Hydraulic Roller / Mechanical Flat Tappet, w/ Damper, 1.514" OD Outer, 1.125" ID Outer, .937" OD Inner, .697" ID Inner, 130@ 1.875 Closed Pressure, 330@ 1300 Open Pressure, 348 Rate, .670 Max Lift, 1.150 Coil Bind, Set of 16 Learn More