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Up top, Airflow Research's highly anticipated new 335cc CNC-ported aluminum heads feature 0.750-inch-thick decks, reinforced rocker-stud bosses, 121cc CNC'd combustion chambers (119cc standard in the as-cast 335), along with premium one-piece stainless steel 2.30/1.88-inch intake/exhaust valves. You can get them out of the box and ready to bolt on for $2,939 (PN 2001), or bare for $2,292 (PN 3350), or in just about any custom configuration in between. Brule opted for bare heads with valves, and assembled them with Comp Cams valvetrain components. View Related Article
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