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Thread: O-ringing a smallport?? worth it

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    Default O-ringing a smallport?? worth it


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    hey guys im getting a smallport and then pulling the head off to check the condition of the rest of the motor. my mate suggested that if i want to turbo it later on which is my plan then to get the block o ringed and a copper head gasket for it. also are most others dropping the compression on these for turbo set-ups? or keeping it stock comp and running less boost with more response??
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    nic

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    You don't hear about O-ringing so much these days on Jap engines. But in th 80s it was always advised for turbo conversions. But in the 80s people used to weld wastegates shut and stupid stuff like that.

    A standard head and block of most Japanese twincams, with a good stainless or copper head gasket, can take very high boost.

    Also these days, with better boost control and ECU's, you may not have to drop the compression.

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    well i can get it done at a cheap price. will it further ensure that it handles boost better?

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    havent seen issues of leaking cylinder pressures with all the engine we fk with all running multi layer metal gaskets, im running 20.1psi and engine builders car at 26psi
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    well i wont bother then. will just get a good metal head gasket. how much are gze pistons? and they will fit a smallport 16v wont they?

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    i have a set of std bore ze pistons done about 20kms and brand new rings
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    O -ringing is for engines with a shit clamping design unlike a 4age. If if you get it for free dont bother. I have never heard of a gasket failure yet even without pinging with crazy boost levels

    If you really want to be sure about sealing skim the block and head flat.
    My website: SQ Engineering - 4AGE and 3SGE upgrade/replacement parts

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