The Leading Source for VW Performance and OEM Parts
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SPORTTUNED 16V ZYL., w/ AST CAMS & LIFTERS
Heads with 4 valves per cylinder, by design, flow a lot of air. The large amount of valve area, though, reduces port velocity at lower engine speeds. It is very important, when modifying these heads, not to go overboard. Surprisingly, many Volkswagen 16V head castings have relatively dirty air passages from the factory, and show vast improvements when only subtle porting is performed. Ports that are too large cause big losses of low-rpm power. Our modifications to the 16V heads concentrate on precision airflow work in the seat areas and a refining of the ports. Includes new silicone-bronze guides, SportTuned valve springs & titanium retainers, and cylinder head gasket set. Available for both 1.8L and 2.0L heads. Zylinderkopf can also be custom configured to your specifications.
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