Set of 16, 3/8" stud 1.6:1 ratio roller rockers
Use Part Number 19210725 for single service part
NOTE: When using a high-lift camshaft, check valve spring coil bind, retainer-to-seal clearance and piston-to-valve clearance. Check for adequate pushrod clearance when using on cast-iron heads. It may be necessary to remove valve
cover drippers for proper rocker arm clearance. Cannot be used on ZZ3 engines with orange valve springs.
