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Astra GTC and Zafira
These high quality Australian made plugs are used in many high performance street and race applications
90lb seat pressure @ 43mm installed height / 246 lb @ 13mm lift
GenV Twin Port (Position Sensor Cap):Â TS-0620-4014
Kelford Cams recommend valve spring KVS24
PAC 1204X Premium Dual Spring x 16 PAC- 1204X 1150cc Astra GTC and Zafira145lb at 1. 800" installed height. 385lb at 0. 650" valve lift. CHEVROLET LS1. PAC 1204X RPM Series Dual Spring set of 16. \nPremium quality Japanese spring steel wound in USA by PAC. Made with advanced heat treatment processing and surface finishing techniques (nano peening) to extend fatigue life. \nHigh spring frequency to allow for better spring surge control at high rpm. \n \n145lb at 1. 800" installed height. \n385lb at 0. 650" valve lift.
