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Thread: milling heads and raising compression

  1. #1
    Join Date
    Apr 2005
    Location
    springfield MO
    Posts
    226
    hey all, I have finally found a cam. It is a GT2-5 specs are 222/222 .566/.566 on 112
    I have an extra set of 5.3 heads and thought I might get them ported (a little) and maybe milled a bit to raise the compresion some. Any thoughts on this? I know a set of aftermarket would be better but I have these and think I can get this done locally for around 250 dollars so it is not too bad price wise.

    Now is this going to help? Allen will be retuning for this so maybe he has some thoughts. His tune for "stock" was right on.

    my truck is a bit lighter than the newer trucks and I have a TB converter now I know this may be on the small side for the combo but I thik it will work for.
    Thanks
    Dave
    1968 Chevy SWB Fleet. 2002 5.3 all stock (for now ) Nelson Tune 4l60e w/TB converter.
    ok not stock anymore...13.3 at 101
    Now with front mount turbo... new times soon

  2. #2
    Join Date
    Apr 2005
    Location
    springfield MO
    Posts
    226
    so any thoughts? Has anybody done any work on the stock heads?
    Dave
    1968 Chevy SWB Fleet. 2002 5.3 all stock (for now ) Nelson Tune 4l60e w/TB converter.
    ok not stock anymore...13.3 at 101
    Now with front mount turbo... new times soon

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