GM 19420455 .570" Beehive Valve Spring Set

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IMPORTANT NOTE: THIS PART REPLACES GM-12499224GM .570" lift single beehive valve spring set. This valve spring set is a performance replacement for stock LS valve springs. This spr ing kit uses your stock factory seals, retainers and locks. These springs are a good choice for stock replacement and mild street performance usage with stock 1.7 rockers arms up to .570" lift. Outer Spring Diameter 1.290" O.D.Install at 1.800" for 90 lbs seat pressureOpen Pressure 295 lbs at 1.250" Show more