DART PRO 1 SBC 230/64cc STRAIGHT PLUG ALUMINUM HEADS #11720040P FREE SHIPPING!!

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. *The heads you receive will be BARE. It will NOT be assembled as in the picture. SB Chevy AluminumξBARE Pro 1ξCylinder Heads #11720040P Port Volume: 230cc Chamber Volume: 64cc Spark Plug: Angleξ-ξAlso available in straight plug - Just let us know! Intake Valve:ξξ Machined for 2.08 Exhaust Valve:ξξ Machined for 1.60 Springs: Bare 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 grea