SKU: SABSA215
MPN: SA215
David Vizard's How to Port and Flow Test Cylinder Heads is the definitive technical manual for engine builders, mechanics, and enthusiasts serious about maximizing cylinder head performance. This comprehensive guide addresses the core challenge facing anyone undertaking head porting: understanding the relationship between port geometry, airflow dynamics, and actual engine output.
Written by legendary engine scientist David Vizard, the manual covers the precise methodology for measuring, analyzing, and modifying intake and exhaust ports to optimize flow characteristics across the entire RPM band. Vizard explains the physics behind port shape, radius optimization, and velocity dynamics—knowledge that separates professional-grade porting from amateur guesswork.
This resource is essential for anyone planning head work on small-block or big-block engines across domestic and import applications. Readers gain practical insight into smoothing transitions, optimizing runner lengths, and understanding how seemingly minor geometry changes dramatically impact volumetric efficiency and power delivery.
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