Brand new MANLEY 11810-8 Small Block Chevy Intake Valves Race Master Set Of 8 .100" Longer Than Stock Length Genuine MANLEY ! 2.055" Head Diameter .3415" - 11/32" Stem Diameter 5.040" Overall Length .290" Tip Length 12 Degree x 3/8" Underhead Angle / Radius .065" Margin .080" Seat Width 7 Degree Dish Head 120 Gram Weight NK-842 Stainless Material Chrome Stems And Hard Tips Swirl Polished And Fully Machined