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Herbert Valve Springs are manufactured from the highest quality materials and are inspected during every step of manufacturing to insure the kind of performance you would expect.

Lighter your valve train, the quicker your engine will rev. and likely meet your engines RPM potential. Titanium save 40% weight to comparable steel .

OD:1.437
ID:.800 Roller Spring
Max Lift: .675
Spring Type: Dual
Seat Pressure: 175/1.750
Open Pressure: 400/1.150
Coil Bind: 1.050