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SPORTTUNED smallstem ZYLINDERKOPF, 1.8L hydraulic lifter head
This new addition to our Zylinderkopf line is designed to improve low rpm torque and high rpm power over ordinary performance heads.Based on a hydraulic lifter cylinderhead, the Small Stem Zylinderkopf uses smaller valve stem diameters instead of increased valve head size to maximize airflow capabilities. The smaller 7mm stems increase airflow without losing low rpm air velocity common with larger head diameters. Because of this, the Small Stem Zylinderkopf is well suited for everything from stock 1.8L to built-up 2.1L bottom ends. Special SportTuned 40mm and 33mm valves run in silicone-bronze guides. Our exclusive port configuration provides optimum airflow without sacraficing drivability. Our precision 3 angle valve job maximizes airflow while maintaining the durability expected on a street motor. The street-legal AUTOTECH Sport 270? Hydro Camshaft with our SportTuned valve springs are included. This head is hydraulic lifter only. Not available in a solid lifter version. Zylinderkopf can also be custom configured to your specifications.
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