A question about boreing and headers...

Discussion in '2005 - 2014 Specific V6 Tech' started by .5Man_.5Horse, Jun 18, 2005.

  1. .5Man_.5Horse

    .5Man_.5Horse New Member

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    Im trying to figure out if its possible to bore out a 3.8 to match that of a 4.6 and be able to use the 4.6 pistons???
     
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  2. echo7

    echo7 Member

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    so from a v6 piston to a v8 piston? don't think that will work. These new v6's are 4.0's by the way, if that's why your in this 2005 v6 thread.
     
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  3. Dutch

    Dutch New Member

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    No, but in a roundabout way, sorta. Boring is a bad way to increase power because you get such small increases in displacement. A 3.8 bored over would only be about 3.9L maximum.

    You can stroke the engine, however. In fact, there is a kit to stroke a 3.8L to 4.6L. You also have to bore the engine to get this displacement. You can NOT use the 4.6L V8 pistons, though, because they are way too small.

    The best option for a 3.8L is to look to the Ford 4.2L V6 available in trucks. They're the same engines, everything is interchangeable. The only difference is stroke. You can put the rotating assembly from a 4.2L engine in a 3.8L engine and make it a 4.2. If you're planning on doing this in a Mustang, however, you'd want to keep the Mustang's intake manifolds. The truck intakes will not fit under a Mustang hood.

    For more info on hopping up a V6 Mustang, check out www.v6power.net. It can be done, but there are MUCH easier and cheaper ways of going about it than trying to build a radical 4.6L V6.
     
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