🔧 LS7 Lifters Set: High-Quality Hydraulic Roller Lifters with Guides Trays | GM Chevy Compatible with 7.0L to 4.8L V8 Engines Review

Engine Valve Lifters Fit for 1999-2002 Camaro and Firebird; 2010-2013 Camaro; 1999-2013 Corvette; 2004-2006 Pontiac GTO; 2004-2007 Cadillac CTS-V; 2008-2009 Pontiac G8; 2000-2013 Tahoe, Yukon, Escalade; 2003-2009 H2 Hummer; 1999-2013 Silverado and Sierra (4.8L, 5.3L, 6.0L). Fits for LS1, LS2, LS3, LS6, LS7, LS9 LSX Engines (4.8L, 5.3L, 5.7L, 6.0L, 6.2L);. Hydraulic tappet Replaces OEM #: 12595365 12499225 12551162 12569259;. Hydraulic tappet, also called valve lifter or hydraulic lash adjuster, is a device for maintaining zero valve clearance in an internal combustion engine. It helps get rid of the need for combustion engine to have mechanical clearance in the engine's valve train, to keep the valve from being held open and thus destroyed as the valve train goes through its process of thermal expansion. In effect, valve lifter keeps the valve healthy and protects from an engine's normal thermal expansion process;. A guide and anti-rotation device for the valve lifter comprises a vertically-disposed leg which seats in a slot formed on the valve lifter and a pair of cylindrically shaped arms, extending horizontally from opposite edges of the leg, which seat in a circumferential groove also formed on the valve lifter. A hook, connected to an upper end of the leg by a reverse bend, seats in a bore formed in the cylinder block;. Quality materials used, meets or exceeds OEM standards, 100% tested before shipping.