For re-installing the manifold on small block engines

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. Install before removing manifold to prevent mis-alignment.

  • Range: 65 to 100mm (2.1/2" to 4")
  • Body Diameter: 19mm hex
Barcode # 9322159977172