About CFE 18 Degree Spreadport BBC Heads

Standard 18 degree Spreadport programs are available in both rectangular and oval port configurations depending on engine requirements. CFE 18 degree Spreadport programs are custom engineered for both engine application and manifold requirements.

The 18 degree Spreadport head is recommended specifically for nitrous oxide applications as it promotes efficient atomization of the air-fuel mixture and thus broadening the tuning window of the engine by making it less prone to detonation. Also the larger combustion chamber typical of the 18 degree Spreadport head makes it desirable for applications that require less compression ratio such as turbocharged and blown engines.

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