These .375″ top Expanding valve guide pilots have a range of up to .020″ from smallest to largest dimensions. They come complete with collet and expander (replacement parts available).
Specifications:
- Top: .375″
- Size: .312″ (7.9mm)
- Range: .309″ to .329″
- OAL: 7.750″
NOTE: Do NOT use expanding pilots with multi-angle valve seat cutting systems such as Goodson 3-D Fast Cut™. They can, however, be used for valve seat grinding.