HEMI Rocker Arm Shaft Stabilizers - 4140 Premium Billet Steel by MMX

New Product! 

MMX Premium 4140 Steel Rocker Shaft Stabilizers! Our premium rocker shaft stabilizers lock together both the intake, and the exhaust rocker shafts together for better valvetrain stability at higher engine speeds. Our rocker stabilizers also help prevent the rocker shafts from deflecting or spreading apart. Made from 4140 Steel alloy. Due to the angle of the pushrod, locking collars are not necessary for use with MMX Rocker shaft stabilizers. 

Note: 

If you plan to use OEM plastic valve covers, you must trim the triangle braces out of each corner of the cover. 

These also fit aftermarket cylinder heads like MMX, Edelbrock, and Thitek.

***THESE DO NOT FIT 2003-2008 5.7 HEADS, OR 2005-2010 6.1 HEADS***

2009-CURRENT 5.7 VVT ENGINES 

2011-CURRENT 6.4 VVT ENGINES 

2015-CURRENT 6.2 VVT ENGINES