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  1. 8

    Ebay valve springs for GT40P heads......

    I found a guy selling brand new sets of valve springs, retainers, and locks on ebay for about $70. Says they're good up to .540 lift and will fit directly on my GT40P heads. He says they're off-brand, but come from the same parts bin as the crane springs do. I'm considering buying them rather...
  2. 8

    GT40P cc size?

    Are they 59cc stock? What would the cc be if they're milled 16 thousandths? What are the advantages to milling them further? thanks
  3. 8

    Upgrade springs for GT40P's

    I'm running the TFS #1 cam with 1.7's and need a spring good up to .540 lift. Tell me what springs you used. summit part numbers? I was told about a crane kit from summit, but they said I'd need an additional set of keepers?????? Can someone set me straight on this?!!! Thanks
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