Kelford Cams - 4G63 DOHC Extreme Force Beehive SpringsUltimate Valve Spring and Retainer Kit for Drag Racing 4G63 engine. Key features: * 142lb on the Seat, 292lb open * Pac Racing High Frequency Beehive * Huge 14mm to coil bind * 4340 Black Nitrided Retainer for extra durability * 4140 CNC machined seat * Designed for 1650+HP applications * 11,000+RPM Not for the faint hearted, on the shelf ready to break records. Intake installs at 39. 5mm 132 lbs. seated, 278lbs at 12mm lift. Exhaust installs at 38.
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Kelford Cams - 4G63 DOHC Extreme Force Beehive Springs