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I have a set of brand new never used NAPREC big valves for a RB26. These valves are 1.5mm oversize however don't require new seat location just a radius and new seats to be cut. A must have when chasing big hp, on my own flow bench increasing the valve seat curtan area buy 1.5mm allowed 10cfm more on the inlet and 17cfm on the exhaust. (these test where run a 10.5 inches of water)

Although these are mentioned on websites for sale I never managed to ever get anywhere waiting for a response and hired a translator to ring Japan and special order these for me.

They are of the highest quality, as mentioned a great assett in a high hp and serious engine build, a mod that will net you genuine power gains.

Asking $600 plus freight for the the full set of Inlet and Exhaust.

Cheers

parts_b09.jpg

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