Brian Crower premium valves guides are made from manganese silicon aluminum bronze alloy and CNC machined to exacting tolerances. Brian Crower guides are resistant to cracking and corrosion, while reducing friction and insures high lubrication even at elevated engine temperatures and RPM's. The perfect replacement to worn or damaged guides and 100% compatible with Brian Crower lineup of stainless steel valves.
B**5
Seem to work well
Stock OEM Subaru valves were very high priced, so i replaced them with these as suggested by my mechanic. I don't know about engine rebuilding therefore can't speak in terms of the different lenghts that valves come in besides OEM, but my mechanic stated the difference is micro measurements and valves can be adjusted, but just in case i got these because they had the closest measurement to stock. The car is running happy, therefore i guess these are going up and down without issue :)
Trustpilot
2 months ago
2 months ago
