Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The Manley LS1 2.100-inch intake valve kit (4.874 in overall, 0.3133 in stem, hollow stem) comes from the Race Series designed for racers up to 8,000 RPM. Swirl‑polished underheads and fully machined combustion faces optimize airflow and combustion efficiency. Stainless steel construction, chrome stems and hard tips improve wear resistance, and available valve shapes let builders match the component to specific racing engine requirements, including alcohol setups.
Manley Chevrolet LS1intake Valve Kit - 2.100in Head Dia. 4.874in O/A Length, 0.3133in Stem
