Check the listing for details. LS Dual Valve Seals & Seat for Aftermarket Dual Springs 5.3 5.7 6.0 6.2 LS1 LS3. Condition: New. Listed at 24.99 USD. Valve Seals for Dual Springs Fits: 4.8 5.3 5.7 6.0 6.2 LS1 LS2 LS3 LQ4 LQ9Fits TSP and BTR Dual .660 Valve SpringsWill not work with single or beehive springs You no longer need special tools to install your valve seals, only to worry if you are going to split one upon installation. Our new integrated seat and seal will literally push over the valve guide. The seat will push against the bottom of the cylinder head, so there is ZERO chance of tearing a valve seal on installation. You will no longer have to worry if you installed the valve seals all the way, risking one coming off once the engine is running! This revolutionary design will make valve spring kit installations a breeze and super easy, even for the first-time installer!Our new integrated seat and seal is designed for the factory valve guide size and WILL NOT work with aftermarket bronze valve guides. *Listing is for a full set of 16, required for a complete setFits: LS1 LS2 LS3 LS6 L99 LSA L92 L9H L94 LS2 L76 L77 LY6 L96 LFA LZ1 LY5 LMG LMF LH6 LC9 LY2 L20 L33 LQ4 LQ9 LR4 LM7 L59 LS4 LH8 LH9