Cylinder head dowel pins designed to provide accurate cylinder head alignment during engine assembly. Precision machined and case hardened for strength and durability, these tubular dowels help ensure proper head positioning and gasket alignment for reliable sealing.
• Fits 1965–1997 Chevrolet 396–454 big block engines
• Fits 1997–2008 GM LS-based engines
• Tubular dowel design
• Outside diameter: .638/.639 in
• 1/2 in size
• Precision machined for accurate alignment
• Case hardened steel construction
• Helps ensure proper head and gasket positioning
• Quantity: Set of 2