GM Performance 19434650 450 HP 6.0L Gen III LS Crate Engine - 24X Reluctor6. 0L LS Crate Engine 452 HP Crate Engine 364 Cubic Inch 452 HP GM LS Series BUDGET PERFORMER BLENDS BEST OF LS ENGINE FAMILY Chevrolet Performance engineers have developed the LS364 450 as a value driven foundation for hot rod builders and enthusiasts looking to give their earlier LS powered vehicles a high performance shot in the arm. Starting with a strong, economical iron cylinder block and durable rotating assembly, the LS 6. 0L features the high