Thread: Valve spring question

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  1. #1 Valve spring question 
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    Hi, im installing a xp hot cam with everything zzp reccomends the issue is they are out of stock of the 136# springs althrough jegs may have the ones i think zzp sells -

    COMP Cams CONICAL VALVESPRINGS .650/.920D 438LB R
    Part Number: 249-7228-12 Rate: 438 lbs
    Inner Diameter: .650'' Top, .920'' Bottom
    Outer Diameter: 1.020'' Top, 1.290'' Bottom
    Seat Load: 136 lbs at 1.800''
    Open Load: 412 lbs at 1.170''
    Coil Bind Height: 1.125''
    12/pkg


    The thing that is throwing me off is i thought the zzp 136's were beehive springs and Jegs are conical springs also im not sure if the Jegs springs are meant for an LS if so i would thing they would work for sure.
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  2. #2 Re: Valve spring question 
    GXP Level Member GTPpower's Avatar
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    I would go for these instead. I'm not a fan of comp springs. Too many people have lost engines due to them.

    PAC-1218 LS1 HP Ovate Wire Beehive - LS Engine Products - General Motors - Applications | PAC Racing Springs
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