RB25 NVCS/VCT Valve Spring and Seat Kit (KVS25-R)
NISSAN RB25DE-DET (with NVCS\VCT). High performance valve spring set.
Includes 24 springs and 12 spring bases for the exhaust side to even up the install heights. 83lb at 30.40mm installed height on intake, 80lb at 30.65mm on the exhaust. 10.50mm maximum lift.