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Item Description Choosing the best-possible cylinder head to match the rest of the package is key to making any LS-based project engine perform to its highest potential. This book reviews every readily available factory and aftermarket cylinder head designed for GM LS-Series engines, and delivers the facts about each in an easily comparable format. See the basic dimensions of each head, along with their claimed airflow rates. Find out about the three major types (cathedral port, rectangular port...

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