Designed specifically for GM LS engines: 4.8, 5.3, 5.7, 6.0, LS1, LS2, LS3, LS6, LS7, LS9, LSA, LQ4, LQ9. Compatible with 4.8, 5.3, 5.7, 6.0, 6.2, 7.0 – LS1 LS2 LS3 LS6. Don’t compromise on quality—choose the tool that promises both reliability and efficiency.