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BBC OVATE BEEHIVE VALVE SPRING SINGLE
LUNATI/HOLLEY 74820-1 Features:
In any spring, the inner diameter experiences significantly more stress than the outside. The ovate multi-arch wire design of these revolutionary valve springs places more material on the inner diameter of the spring, which more evenly distributes stress throughout the wire cross-se ction and increases the overall life of the spring. Other features of the Signature Series Ovate Beehive Valve Springs include reduced mass in the retainer end of the spring, which increases RPM potential, and reduced coil surging for more valve control and longevity. Lastly, a thinner cross-section wire gives more coil bind clearance to allow for camshafts with higher lift or higher ratio rocker arms. The Signature Series Ovate Beehive Valve Springs are the ultimate in cutting-edge valvetrain performance.Part TypeValve Spring
BrandLUNATI
Package Height3.0
Package Width3.0
Package Length24.5
Weight0.25 PG
Part CategoryPerformance Parts
CoatedNo
Outside Diameter Of Outer Spring1.445 in (36.7 mm)
Coil Bind Height1.14 in (28.956 mm)
Damper Spring IncludedNo
Spring Rate370 lbs./in.
QuantitySold individually
Part FitmentSemi Universal
Inside Diameter Of Inner Spring0.65 in (16.51 mm)
Valve Spring StyleBeehive
Number Of Springs Per ValveSingle
Vendor Part Number74820-1LUN
Package Qty1
Package TypeEA
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