Notes: Cylinder Head 23 SBC 235cc Competition Package heads Spread port exhaust 80cc chambers complete with parts Pair
Our Medium Sized Oval Port Spread Port heads have the center exhaust ports spread apart approximately 1/2 over stock L98 GM heads. The reason for spread port heads is to achieve additional cooling in the center of the head where the heat concentration is greatest. As standard headers do not fit, spread port headers are required dsince the center ports are spread further apart then stock GM products. The increased spacing on the exhaust port also requires the use of exhaust gasket Fel-Pro #1409. Spread port heads only come with a Stahl bolt pattern. AFR's spread port head has all the benefits and features of AFR's standard head. As all benefits and features are the same, please review respective page for products details.
