DART PRO 1 SBC 180/72cc 1.437 ANGLE PLUG HEADS #11211112P W/ DART VALVE COVERS

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. FREE DART ALUMINUM VALVE COVERS # 68000015! SB Chevy Aluminum Complete Pro 1 Cylinder Heads #11211112P Port Volume: 180cc Chamber Volume: 72cc Spark Plug: Angle Intake Valve:   2.02 Exhaust Valve:   1.60 Springs: 1.437 double springs for hydraulic roller or solid flat tapper cams up to .620 lift. Full Platinum treatment utilizing wet-flow technology. Independent tests have demonstrated a typical 25 horsepower gain over the previous Pro1 design. The redesigned chamber features improved fuel distribution, spark plugs are located high and and as close to the center of the chamber as possible and five-angle intake seats shear the liquid fuel and air as it enters the chamber. The intake face, exhaust face and exhaust ports have been redesigned, valve guide bosses are profiled and casting walls are cleaner and more consistent, resulting in greater control over flow, heat and combustion. PRO 1 heads can be used w