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These Brian Crower exhaust valves are specified for Nissan TB48 engines and feature a 34.5mm head diameter, supplying direct-fit valve hardware for TB48-powered builds. The listing identifies the valves by Nissan TB48 application and size, making them suitable for engine builders or mechanics replacing or upgrading exhaust-valve components in that engine family where that diameter is required.
Brian Crower Nissan TB48 34.5mm Exhaust Valves
