Cylinder Heads

2001-2016 Duramax Performance HD Valve Spring Set of 32 (360-1022)

2001-2016 Duramax Manton Conical Valve Spring Kit (D-105-KIT-Dmax)

2011-2016 Duramax LML SoCal Billet Aluminum Upper Valve Cover

2011-2016 Duramax LML SoCal Valve Cover Grommet Delete Kit

2001-2016 Duramax Wagler Street Dual Valve Spring Kit (C6643)

Kryptonite Valve Stem Caps (KRVSC)

2011-2016 Duramax LML PML Reman Cylinder Head Set of 2 (CH66D-LML-11-16)