Mechanic Ranks Chevy V8 Engines From WORST to BEST for Reliability

This video ranks nine Chevy V8 engines from worst to best for long-term reliability, delivered from the perspective of a working mechanic who has spent decades diagnosing what actually fails and what it costs. The list runs from the modern L87 6.2-liter, currently under federal investigation by NHTSA covering nearly a million vehicles for crankshaft defects and contaminated oil passages, all the way up to the Gen Three iron-block LS engines found in late 1990s and 2000s Silverados, Sierras, and Suburbans. Along the way the video covers the Active Fuel Management lifter failures in the 5.3 and 6.2, the oil-burning LС9, the Optispark distributor weakness in the LT1 found in Corvettes and Camaros, the lower intake gasket problems of the Vortec 5700, the LB7 Duramax injector issues, and the classic small-block 350. The video also explains what the post-recall fix for the L87 actually consisted of, why NHTSA escalated its investigation, and how to use a VIN and glovebox option sticker to identify any GM V8 before buying. #chevy #v8engine #gmtrucks #mechanicadvice #enginereliability #silverado #lsengine #truckbuying #automotiveadvice #usedcars