This is a full set of replacement upgraded valve guides for your Ecotec engine. Supertech valve guides are manufactured from high quality manganese bronze for sport compact and domestic applications.

Set of 16 guides. Enough to service one Ecotec cylinder head. 

Installation note: These guides are made to be reamed after installation. Measure the valve to guide clearance and ream the guides accordingly to provide the correct valve to guide clearance for your application.