Kameari FJ20 Cast iron standard valve guide

Normal auto that does not require a racing valve guide.
A cast iron standard valve guide that can be used for bar holes, head tuning, etc.
Unlike the genuine product, which has an oversized outer diameter and a half-finished inner diameter, the inner and outer diameters are already finished to the STD size, so there is no unnecessary There are no processing costs. Finally, just pass the reamer through it to fine-tune the clearance and you're done.

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Kameari FJ20 Cast iron standard valve guide