Sized for 6 mm valve guide restoration, these 2.25" (5.7 cm) guide liners seat into a bored hole with a maximum inner dimension of 0.2675" (0.7 cm). They function at maximum performance when finished to a minimum inner diameter of 0.236" (0.6 cm) or larger during the final sizing process. This 100-pack supports high-volume cylinder head service.

Sized for 6 mm valve guide restoration, these 2.25" (5.7 cm) guide liners seat into a bored hole with a maximum inner dimension of 0.2675" (0.7 cm). They function at maximum performance when finished to a minimum inner diameter of 0.236" (0.6 cm) or larger during the final sizing process. This 100-pack supports high-volume cylinder head service.