Assembled 255cc Intake Runner 72cc Combustion Chamber

Description Additional information Description MATERIAL 355-T6 High Density Aluminum APPLICATION LS3 Block Chevy ASSEMBLED OR BARE Assembled INTAKE RUNNER 255cc CHAMBER VOLUME 72cc MAX LIFT .675? INTAKE VALVE DIAMETER 2.165? EXHAUST VALVE DIAMETER 1.590? VALVE STEM DIAMETER 8mm SINGLE OR DUAL SPRING Dual VALVE SPRING OD 1.295? SPRING SEAT DIA 1.560? VALVE GUIDE OD .500? SPARK PLUG TYPE 3/4 Reach, Tapered Seat SOLD AS Individually   Additional information Packaged Assembled