SBI Valve Spring. Specifications: Closed Pressure: 81@3.400, Coils / Turn Direction: 13.40 RH, I.D: 0.755, Length: 3.930, O.D.: 1.109, Open Pressure: 241@2.450, Solid Height: 2.350, Wire Diameter: 0.177.

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S.B. International delivers premium valve train components trusted by engine builders. This valve spring is precision-manufactured in the USA to meet or exceed OEM specifications for reliable engine performance.

• SBI precision-manufactured valve spring | Meets or exceeds OEM specifications | Made in USA by S.B. International