Supertech Valve Springs - F20C - SP [email protected], OP 253@12, MNL 14.9, CB 25.5, Rate 13.5

Supertech valve springs are made with premium Superclean Chrome Silicon Vanadium Steel allowing for higher performance, durability and better memory at high rpms. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for excellent durability under extreme conditions.

Computerized engineering also allows Supertech to make sure that the harmonics are well under control.

Spring sets are dual spring sets unless otherwise noted.

 

SPECIFICATION KEY: SP=Seat Pressure lbs@mm; OP=Open (lift) Pressure lbs@mm; MNL=Maximum Net Lift mm; CB=Coil Bind mm; Rate=Rate lbs./mm