NOT suitable for NON VCT or Neo Head. Those heads require the KVS20 kit
83lb seat pressure at 30.40mm installed height. 10.50mm maximum lift. - Nissan RB25DET (with NVCS). High performance valve springs with Titanium retainers. \nIncludes 24 springs, 24 retainers and 12 spring bases for the exhaust side to even up the install heights. \nIntake: 83lb seat pressure at 30.40mm installed height. \nExhaust: 80lb seat pressure at 30.65mm installed height. \n10.50mm maximum lift.
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