These .385" 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: .385"
• Size: .500" (12.70mm)
• Range: .497" to .517"
• OAL: 8.4375"

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.