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Kibblewhite Precision

Kibblewhite Precision 20-20450 Complete Valve Spring Kit - .600in. Lift


Generally ships to addresses in the contiguous United States the same business day if ordered by 12:15PM Central Time!

Designed for maximum performance.
Feature interference-wound, double-chrome silicone springs; heat-treated steel base washers.
Available in a complete set for one engine.
Include steel retainers.
Made in the USA.
Require machining of valve guides for special seals.
NOTE: May require R-Style valves to achieve correct install height.
Spring kits use stock lower collars (KPMI offers replacement lower collars - Part # 20-2111).
Type: Intake/Exhaust.
Retainer Material: H.T. Steel.
Valve Lift: 0.600in..
Installed Height: 1.510in..
Seat Pressure: 150#.
Open Pressure: 385#.
@ Lift: 0.600in..
Note: The basewasher is counterbored to fit a 0.665in. outside diameter seal.
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