As an Amazon Associate, we earn from qualifying purchases. MHS .500" Lift PAC RPM Series 4V Valve Springs- Stage 3 Modular Head Shop . VS-4V-STG3 Gallery Attributes Brand name, Manufacturer name, ManufacturerModular Head Shop ConditionNEW Extra Product NameMHS .500" Lift PAC RPM Series 4V Valve Springs- Stage 3 keywordsmhs, modular head shop, 4v, valve springs, pac, valve, spring, set, stage 3, no machining, drop in, rpm series, 1234x, moq, multiple, tierMinQty11 MPNVS-4V-STG3 qtyInStock-2 qtySourceFieldMap SKUMHS-VS-4V-STG3 snippetThese MHS / PAC RPM Series Stage 3 Valve springs are a great choice for 4V applications up to 45lbs of boost and up to 9500 RPM. Supplied with your choice of 4130 Chrome Moly or 6AL-4V Titanium Retainers. tierPrice1699.00 Distributor offers SellerSKUMOQIn stockMultiplePrices modularheadshop.comMHS-VS-4V-STG31-211 @ $699.00