Check the listing for details. Dual Valve Spring Kit Steel Retainers For LS .660" 4.8 5.3 6.0 LS1 LS2 LS3 SK001. Condition: New. Listed at 64.65 USD. we accept payment through PayPal only. Payments must be received within 14 days of auction end. We process your order within 3 business day upon payment We process and dispatch your purchase within 3 business day after payment clearance. Please contact us if you have special requirements (combination of packaging etc.). We offer free USPS or FEDEX Package as default. If you choose express post, we charge a flat rate and we Express Post, which can be delivered in 1-3 business days, depending on your location. If you require another company, please contact us. Please contact us first when return, exchange and refund is required. Any direct return of purchased items will not be processed. Buyer is responsible for the return cost. Change-of-mind return can only be accepted within 7 days after purchase. All other returns can be accepted in 30 days. Before leaving us neutral or negative feedback, please contact us first. We will do everything we can to give you a satisfying solution. Please dont open case via eBay or PayPal. Please dont open any return request before contact us. We do our best to resolve any issue. Leaving negative feedback and low ratings doesnt get things solved. So please talk with us and we will not let you down. All rights reserved.