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Out with the old in with the new

This is a discussion on Out with the old in with the new within the Internal Engine forums, part of the LSx Technical Help Section category; Ok Sarge your out..LOL J/K ... ... please don't BAN me Anyhow. Lifters: First how do you know you have ...

  1. #1
    Member Phlash_riot's Avatar
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    Midnight Blue
    1999 T/A

    Out with the old in with the new

    Ok Sarge your out..LOL J/K

    ... ... please don't BAN me



    Anyhow. Lifters:
    First how do you know you have to replace them:
    - Without tear down
    - Having them out of the engine and in your hands?


    If I was going for 400 Rwhp with a CheaTR Cam and chromemolly pushrods, roller tip rockers(1.7 unless I can get away with 1.8but that is another thread for me there) and new springs(again another thread to post up on and more than likely stock valves; Can i put bigger valves into the 843 heads or should i go with the 241 and port those instead) should I stay with stock or get aftermarket?
    What aftermarket ones to get?
    I know that if i get new one i will NOT be putting in Comp "R" versions.

    But how do you choose one? What do you look for in one?

    I know I know MORE questions... ... ...

  2. #2
    Member Phlash_riot's Avatar
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    Midnight Blue
    1999 T/A

    Ttt

  3. #3
    Senior Member mrr23's Avatar
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    dark bowling green
    2000 corvette

    lifter replacement
    without a teardown - having a ticking noise coming from the valve cover area.
    having them out of the engine - push down on the lifter cup. if the cup moves really easy, then the inner spring is going bad.

    going 1.8 rockers will most likely cause piston to valve interference unless you flycut the pistons. stay with the 1.7 and get the vinci/crane accelerated lift rocker kit.

    i haven't replaced any of my stock lifters.

    to put bigger valves into a head, you have to cut the seat to match and port the bowl area at the least to achieve any gains from doing it.

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