Cylinder Head
WARNING: This page is about a different car, the 2003 GMC Sonoma and 2003 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
The cylinder head is cast aluminum made in a lost-foam casting process. This results in a casting requiring very little final machining. The cylinder head has sintered powdered metal valve guides and valve seats.