Cosworth High RPM Vale Springs are the result of countless hours of engineering, testing and validation ensuring the best possible spring for high performance applications. Cosworth High RPM Valve Springs are wound from the world's finest Japanese Kobe steel and feature dual chamfered ends to reduce wear on seats and retainers. Each spring has been engineered with increased seat pressure along with higher lift capability for optimum performance potential and improved valve control. Single spring design allows easy installation with no machining required and is perfect for typical high performance use.

Specifications:

• Manufactured from the finest Japanese Kobe Steel
• Single spring design for easy installation
• Dual chamfered ends
• Increased performance
• Beehive shape allows use of original lightweight alloy retainer
  

Free	L1	F1	F1	L2	F2	F2	Max	Coil
height	mm	N	lbs.	mm	N	lbs.	Lift	Bind
42.00	36.0	275	62	25.0	780	175	11.0	23.2

L1=Install Height F1=Force @ L1 L2=Max Lift F2=Force @ Max Lift