SBI Valve Spring. Specifications: Closed Pressure: 35@1.637, Coils / Turn Direction: 6.30 RH, I.D: 0.859, Length: 1.801, O.D.: 1.189, Open Pressure: 167@1.035, Solid Height: 1.000, Wire Diameter: 0.165.

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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