Brand New Set of Sixteen (16) Lunati 1.000 Lift Signature Series/Voodoo ##xAE; Triple Valve Springs. Outside Diameter (Outer): 1.645. Spring Rate (lbs/inch): 689 lbs/in. Product Representation: Actual parts may vary based on configuration ordered. Based around the Lunati Signature Series Valve Springs, the Signature Series Valve Spring Kits are ideal for high stress applications such as professional drag racing and oval track racing.Every retainer, lock, locator and cup was specifically chosen to get the most out of each corresponding Signature Series Spring. The item "Lunati Signature Series 1.645 Voodoo 1.000 Lift Triple Valve Springs #74750-16" is in sale since Sunday, April 28, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Valves & Parts". The seller is "speedliquidators" and is located in Memphis, Tennessee. This item can be shipped worldwide.