GENUINE GM NON-AFM HYDRAULIC ROLLER LIFTERS FOR HOLDEN COMMODORE VZ VE VF L76 L77 6.0L V8Genuine GM high performance hydraulic roller lifters are an upgrade for factory lifters found in LS V8 engines. With refined durability and performance, they ensure valve train stability in themost demanding conditions. These are performance replacement for stock hydraulic roller lifters, are preloaded and have to be installed between 3 8 and 3 4 turn (vs. 1 2 to 1. 5 turns on stock lifters). These hydraulic roller lifters suit Holden Commodores and