This category offers adjustment shims and complete shim sets for precise valve clearance setting in Alfa Romeo engines – especially for the classic Twin Cam series. All shims are hardened, precision-ground, and available in a wide range of thicknesses.
Perfect for professional engine rebuilds, valve clearance correction, or performance-oriented applications. We also offer assorted shim sets in organized cases – ideal for workshops, collectors, or restorers working regularly on Alfa engines.
For optimal function and smooth, precise valve operation – perfectly matched to your cylinder head.