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Hydraulic roller lifters with high boost.

Discussion in 'LS1, LS2, LS6, LT1, SBC Turbo and other GM Specfic Turbo Tech' started by bishop777, Aug 8, 2010.

  1. bishop777

    Joined:
    Jul 27, 2010
    Finally putting together my forged 5.3 for a mp4503 single. Are stock LS7 lifters ok with 18 pounds plus? Ive heard that with overlap, valves opening against high boost pressures can result in "pumping up" or collapsing hydraulic lifters. This motor will see 7,000 rpm. Are the stock roller rockers sufficient for high boost also?
     
    bishop777, Aug 8, 2010
    #1

  2. TTFBDY

    Joined:
    Aug 18, 2004
    Search screen name Quik.
     
    TTFBDY, Aug 9, 2010
    #2
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