This will go over cylinder bores up to 4-1/2in. This is used to check piston-to-deck clearance, and it is magnetic so it holds firmly in place. Dial indicator 66962 is sold separately.

Features:
Dial Indicator Not Included and Sold Separately
  • Will Fit Over Any Cylinder Bore Up to 4.500-in. es
  • Made from High-Quality Aluminum
  • Magnets Built Into The Aluminum Bridge Legs
  • PROFORM Parts Brand Product
  • Sold Individually