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The Manley LS1 2.055-inch intake valve kit (4.874 in overall, 0.3133 in stem, hollow stem) is a Race Series valve built for bracket, drag, and oval track racing up to 8,000 RPM. Swirl polishing under the head and fully machined combustion faces optimize airflow and combustion efficiency. Stainless steel construction, chrome stems and hard tips provide durability, while available valve shapes let builders tailor selection for race or alcohol engine use.
Manley Chevrolet LS1intake Valve Kit - 2.055in Head Dia. 4.874in O/A Length, 0.3133in Stem
