LT Gen-V HP Timing Set True Roller w/Z Chain

High-Performance Billet Timing Set. The Jegs description mentions it 'eliminates the tensioner on GM LT Engines equipped with VVT (Variable Valve Timing). It replaces the chain and crankshaft sprocket to tighten the chain fitment, eliminating slack.' It also states 'All-out double roller Z-Chain is high-strength steel with proprietary heat-treat processing and is the most durable and dependable chain available today. The fine blanked links reduce stress risers, thus reducing fractures under severe load'. The 'Billet 5-Keyway crank sprocket provides plus or minus 5 degrees of timing adjustability'.