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Howards Cams Performance Street/Strip Valve Springs are coiled and heat-treated in the finest facilities available. Howards research and development teams are constantly updating the Howards Cams Performance Street/Strip Valve Springs materials and manufacturing techniques, to provide the best possible valve springs.
Howards Cams pioneered many valve spring developments since the 1950’s, and are still working with the best engineers and race teams to be on the cutting edge of valve spring technology.
This product is in the following categories:
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Valve Springs
Manufacturer:
Howards Cams
Part #: 98111
1.240" Outside Diameter of Outer Spring
1.125" Coil Bind Height
335 lbs/in Spring Rate
0.860" Inside Diameter of Inner Spring
Part #: 98212
SB Chevy 1.265 O.D., .875 I.D. Single w/Damp, Seat Pressure 115 @ 1.750, Open Pressure 340 @ 1.250, Rate 425, Coil Bind, 1.150 Max Lift .550*
Part #: 98214
SB Chevy 1.250 O.D., .870 I.D. Single w/Damp, Seat Pressure 115 @ 1.700, Open Pressure 300 @ 1.250, Rate 411, Coil Bind, 1.160 Max Lift .500*
Part #: 98412
1.445" Outside Diameter of Outer Spring
1.125" Coil Bind Height
347 lbs/in Spring Rate
1.040" Inside Diameter of Inner Spring
Part #: 98432
1.437" Outside Diameter of Outer Spring
1.062" Coil Bind Height
300 lbs/in Spring Rate
0.760" Inside Diameter of Inner Spring
Part #: 98515
1.510" Outside Diameter of Outer Spring
1.300" Coil Bind Height
350 lbs/in Spring Rate
1.110" Inside Diameter of Inner Spring