As an Amazon Associate, we earn from qualifying purchases. MHS / PAC RPM Series .500" Lift Stage 2 4V Valve Springs Modular Head Shop . 702620-4V Gallery Attributes Brand name, Manufacturer name, ManufacturerModular Head Shop ConditionNEW Extra Product NameMHS / PAC RPM Series .500" Lift Stage 2 4V Valve Springs keywordsmhs, modular head shop, valve springs, pac, rpm, series, street, strip, stage 2, 4v, cobra, mach 1, mach1, navigator, beehive, titanium, retainers, moq, multiple, tierMinQty11 MPN702620-4V qtyInStock-2 qtySourceFieldMap SKUMHS-702620-4V snippetThe MHS / PAC RPM Series Stage 2 Valve springs are designed for N/A and moderate forced induction applications up to 20lbs of boost and .500" lift. These valve springs feature PAC's RPM Processing Heat and Surface Treatment, ID Chamfers at the top and bottom and are lighter than any comparable spring on the market. Supplied with MHS 4130 Chrome Moly Retainers with an option to upgrade to 6AL-4V Titanium Retainers. tierPrice1699.00 Distributor offers SellerSKUMOQIn stockMultiplePrices modularheadshop.comMHS-702620-4V1-211 @ $699.00