Heavy Duty Valve Springs for GX240, GX270, GX340, GX390 & 420 Predator Engines - Pair, 48lb, Blue Stripe

Heavy Duty Valve Springs for GX240, GX270, GX340, GX390 & 420 Predator Engines - Pair, 48lb, Blue Stripe

• Heavy duty valve springs sold as a matched pair for GX240, GX270, GX340, GX390, and 420 Predator engines.
• Rated at approximately 48lb of spring force at 1.15 inch installed height.
• Free height measures 1.57 inches, with springs marked by a blue stripe for identification.
• Recommended for use when removing the stock governor to allow higher engine speed.
• Without upgraded valve springs, removing the governor limits engine speed to about 4500 RPM and can cause stock valves to float, which can eventually cause engine damage.