328 / 308 QV valve spring specs help | FerrariChat
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328 / 308 QV valve spring specs help

Discussion in 'Technical Q&A' started by louthancomp, Jul 29, 2008.

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  1. louthancomp

    louthancomp Karting

    Feb 9, 2007
    87
    Salem, Oregon
    Full Name:
    Robert Louthan
    #1 louthancomp, Jul 29, 2008
    I'm assembling a set of 308 QV heads and it seems that my 308QV and 328 manuals both show the specs for the 2 valve springs which are WAY different than the 4 valve springs. The specs I have show 42.1 mm free length and 25.5 mm coil bind on the outer spring. The 4 valve spring is significantly shorter than this. It should be around 33.5 mm with valve closed. I have checked online manuals and they are the same as what I have. If you have anything different it would help me out a lot! I need installed height and pressures.
    Thanks!
     

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