Features and Benefits:

• For reinstalling the manifold on small block Chevrolets
• A simple way to expand a warped manifold so all bolt holes are accurately aligned
• Helps prevent cross-threading of manifold bolts
• Works best when used in pairs or install before removing manifold to prevent misalignment
• Skin-packed

A simple way to expand a warped manifold so all bolt holes are accurately aligned. Helps prevent cross-threading of manifold bolts. Works best when used in pairs. Or install before removing manifold to prevent misalignment.