Product Summary

1.56" Outer Spring O.D., .710" Maximum Lift

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    Key Specs

    MFG. Part #9995RAD
    BrandIsky Cams
    Valve Spring StyleDual Spring w/ Damper
    Maximum Lift.710"
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    Isky Cams 9995RAD Details

    These springs run harder, rev higher, and live longer. Isky Tool Room (Std) and Rad-9000 (Rad) racing valve springs are some of the very best valve springs made. Valve springs sold in complete engine sets (16).

    • Manufactured to the highest standards in the industry
    • Guaranteed for 1,000 racing miles
    • Each spring thoroughy tested at the factory

    NOTE: Machining of valve seat may be required if spring O.D. is larger than 1.250".

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    CARB Warning

    For race/ off road use only

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    Isky Cams 9995RAD Specifications

    KEY SPECS
    MFG. Part #9995RAD
    BrandIsky Cams
    Valve Spring StyleDual Spring w/ Damper
    Maximum Lift.710"
    GENERAL
    Outer Spring O.D.1.56"
    Open Pressure625 lbs. at 1.30"
    Seat Pressure250 lbs. at 2.03"
    Outer Spring I.D.1.145"
    Inner Spring O.D.1.035"
    Inner Spring I.D..740"
    Sold in QuantitySet
    Solid Height1.20"
    NotesSet of (16)

    Questions & Answers

    1 Question1 Answer

    Valve Spring Pressure Increase If I install a valve spring at 1.95" instead of the advertised 2.00" (assuming no coil bind), the seat and open pressure would increase .05 x the spring rate (I think). Is there a reason not to do this? Thx, Russ Gossett

    by rgsprint

    11 years ago

    1 answer

    1 of 1 questions shown

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