LS Conversion Engine Swap Mounts Fit: ALL Chevrolet LS Series Engines:LS1, LS2, LS3, LS6, LS7, LS9, GM 4.8L 5.3L 5.7L 6.0L 6.2L(1997-2014) 4.8L,5.3L,6.0L,6.2L Vortec Truck Engines(1999-2013) LSX LM7 LR4 LQ4 LQ9 L33 LH6 L92 L76 L99 L96 L82 L83 L84 L86 L87. Compatible: 1973-1987 “Square Body”:Chevy Full Size C/K Trucks.Suburban?K5 Blazer?Silverado?Cheyenne?C10, C20, C30, K10, K20, K30?Scottsdale /GMC Jimmy,Sierra That SBC V8 using Clamshell Mounts. 305 350 400 1988-1998 "OBS" Chevy C/K Series Trucks & SUVS,Suburban, Tahoe, Full Size 2 door Blazer?Silverado?C1500, C2500, C3500, K1500, K2500, K3500/GMC Yukon,Sierra Using Clamshell Mounts. 5.0L 5.7L