Overview Reviews Product Description SBC P/F 2.020in Intake Valves - LS1 Intake Valve - Race Series - 2.020 in Head - 0.313 in Valve Stem - 4.874 in Long - Stainless - GM LS-Series - Set of 8 Product Videos Custom Field Product Reviews Write a Review Write a Review × MANLEY SBC P/F 2.020in Intake Valves - LS1 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *