Hooker Clamshell Engine Mounts are now available for Gen 5 LT engines, including the popular LT1, LT2, LT4, LT5, L83, L86, L84, and L87 engines. . These professional quality housings are a two piece, bolt together design featuring heavy-duty 11 gauge steel construction with O.E specs and a durable powder coated finish. *This product listing is for a kit, read below for specs. Features: Clamshell uses Hooker BlackHeart LS/LT 4th Gen F-Body style Poly Inserts to place engine crank centerline and transmission mounting plane in the same position as a stock LS engine Works with all Holley LS swap kits that utilize 4th Gen F-Body mounts, allowing installation of a Gen 5 LT engine into a Holley LS swapped vehicle while maintaining the same transmission position and crossmember (Will require new headers). These will also work with other frame mounts that use a 98-02 F-Body engine mount and keep the LT engine in the same location as the LS. Heavy duty 11 gauge steel construction with reinforcement ribs for strength and durability Two piece bolt together design (eliminates the rivet drilling required when using OE mounts) Durable powder coated finish This kit specifically from Pro Touring Store includes Hooker BlackHeart LS/LT Polyurethane Inserts – P/N’s 71221016HKR (Black) or 71221017HKR (Red), as well as TWO clamshell mounts with hardware, for a complete kit. *Choose color of poly mount in the drop down. The 2 long mounting bolts are NOT included in this kit. (M12x150mm x2 and nuts)