This tool kit Fits For cathedral port LS cylinder heads. Like: LS1, LS6, LS2, LQ4, LQ9, 5.3L, 5.7L, 6.0L, and all the other LS cathedral port variations. Universal for LS Engine! (For Example, It will work on any LS engine for Firebird, Silverado, Camaro, GTO, Trans am, Corvette, CTSV, Sierra, Tahoe, Suburban, Pontiac G8 GT, and more. ).
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