LS1 Rocker Arms and Bolts with Trunion Kit Installed Compatible with LS2 LS6 LQ4 LQ9 LY5 LY6 LM7 4.8 5.3 5.7 6.0 12681275 180-1337 MR-1341
Part OEM Number: 10214664; 12681275; 180-1337; MR-1341; R907M; G4400.
Replacement for Chevrolet Camaro 1997-2001; Corvette 1997-2007; Silverado 1500 1999-2007; Silverado 2500 1999-2015; Suburban 2500 2000-2013; Tahoe 2000-2016; Trailblazer 2006-2009.
Replacement for Cadillac CTS 2004-2005; Escalade 2002-2005; for GMC Sierra 1500 1999-2007; Yukon XL 1500 2000-2006.
Replacement for Pontiac Firebird 1998-2002; GTO 2004-2006.
Serving as a mechanical link between the camshaft and the poppet valve, the rocker arm translates the rotation of the camshaft into the linear motion that moves the valve. The camshaft features flat oval lobes, and when the nose or the protruding part is turned towards the rocker arm, the lever is pushed either up or down. Meanwhile, the other end of the rocker arm moves the valve in the open or closed position.