Nissan 2.6L(RB26DET/T) Race Flo intake valves. 34.6mm head diam., 6mm stem diam., stock length 102.33mm O/A, 3.5mm tip length, Pro Flo 22° X 5/16" underhead angle/radius, .050" margin, .075" X 45° seat, 17° dish.
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