David Vizard's How to Port & Flow Test Cylinder Heads (S-A Design)

Great book to learn how to get high performance out of your heads ..love the book. Great tips

If you have ever thought about porting your own heads or done a few, this book will be extremely helpful and interesting. As usual, David explains and shows actual technique to an extent you would have to search years to find otherwise, in my opinion. I ported my first set of heads in college and they probably were OK, but this book would have helped them reach their full potential! I think many people can also just benefit from understanding what makes for good flow when they are looking at various possibilities for their projects. I also liked all the information about building your own flow bench, and wished I had the time and space to do that in the near future.

This book will help you understand how your engine breaths and how to get more out of a set of cylinder heads.

this is a good book despite the self indulgence of the author his text and drawing content is very good and enlightening to a person with a bent towards the subject matter he definatly imparts a good deal of quality info however he is enamoured with graphs, they explain everthing!! if you have a degree in quantum physics. some are self explanatory but the bulk of them there is no explanation that make sense of them to me the left school in the eight grader I am by no means smart or stupid just a small note in how to interpret each graph would have made this a superb book and I am still glad I paid for it and had it sent to Australia would be head porter from down under

As advertised. Quick shipping. Would purchase again from this vendor again

This has increased my understanding of the internal combustion process greatly. I recommend it especially if you are thinking a a camshaft upgrade.

Vizard is legendary for being able to put complex technical topics down clearly on paper in an understandable way and this book is no exception. Many technical writers merely state things based on their training and experience. And those statements may be 100 percent accurate. Vizard takes the extra steps to show you the proof that comes from his objective testing. If you are a geek like me, you will devour every word of this book like it was your first meal after a three day fast. I wished for a little "more" on the topic but know there is a level past which this can't be taught without hands-on experience. Consider this book a primer for someone in preparation for gaining some specific experience. There is no "one size fit's all" when it comes to porting so it really can't be taught generically. I'm sure Vizard could have taught how to port a particular head and given us one of his secret recipes for that head but that recipe wouldn't translate to another head. The bottom line here is that if you expect this book, or any other, to show you how to port any head for fun, profit and mondo horsepower with no more than a die grinder, you will be disappointed. While you can successfully make minor improvements that are beneficial, you can't get into the "Big Leagues" without a flow bench, a small array of precision tools and a few extra heads to experiment on.

Have a bunch of Davids books, and have ported SB chevy heads using his methods with good results.

Super

The author takes into account only the "classic" heads 2 valve per cylinder engines Americans, for hemispherical heads is wasted on a page and to the heads with 16 valves even less. If you want to take action on a European or Japanese modern engine it is completely useless. It would have been nice to know this in the sales description of the book and then decide whether to buy it or not. L'autore prende in consisderazione solo le teste "classiche" a 2 valvole per cilindro dei motori Americani, per le teste emisferiche si spreca in una pagina e per le teste a 16 valvole anche meno. Se si vuole intervenire su un motore moderno Europeo o Giapponese è completamente inutile. Sarebbe stato bello sapere ciò nella descrizione di vendita del libro per poi decidere se acquistarlo o meno.

Es muy facil de leer lleno de ejemplos, e historias y te da el enfoque para entender la preparacion de culatas

As usual with the Mr Vizard's books, it's a very well done work. The quality of the explanations, pictures and drawings is perfect. Nevertheless, first of all, intended to traditionnal american iron. Few informations about hemi and four valve heads.

I've seen all kinds of media and books on Porting cylinder heads, both for racing and for more efficient fuel mileage. His book is much better, for amateurs and even more for professionals. Outstandingly clear, excellent graphics and charts and explanations! Well written, technically simple language. Can't recommend it enough.