Brian Crower 3SGTE 3SGE Exhaust Valve Guides 6mm (BCR BC3937) FE 390-428 Part Number: AF931-10-08S

Part Number: AF931-10-08S

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Brian Crower 3SGTE 3SGE Exhaust Valve Guides 6mm (BCR BC3937) FE 390-428 Part Number: AF931-10-08SBrian Crower 3SGTE 3SGE Exhaust Valve Guides 6mm Brand: Brian Crower Manufacturer's Part Number: BC3937 Stealth Ride Part Number: BC3937 UPC: Description: Valve Guides are a wear item. They wear over time and eventually should be replaced. The higher you rev, and the harder you push your engine, the more important tolerances become. If you are spending the time and money to upgrade your valvetrain, be sure your tolerances are correct by replacing your