Spring set Extreme Beehive and titanium retainers Kelford Cams for Mitsubishi 4G63 DOHC VR4 EVO 7

Ultimate Valve Spring and Retainer Kit for Drag Racing 4G63 engine. \nKey features: \n  \n* 142lb on the Seat, 292lb open \n* Pac Racing High Frequency Beehive \n* Huge 14mm to coil bind \n* 4340 Black Nitrided Retainer for extra durability \n* 4140 CNC machined seat \n* Designed for 1650+HP applications \n* 11,000+RPM \nNot for the faint hearted, on the shelf ready to break records. \n  \nIntake installs at 39.5mm 132 lbs. seated, 278lbs at 12mm lift. \nExhaust installs at 38.5mm 142 lbs. seated, 292 lbs. at 12mm lift. \nMaximum lift 14.0mm \n \n  \n

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