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Message: <blockquote data-quote="BigBore96" data-source="post: 1080222" data-attributes="member: 17566">Trust me I know the aftermarket is not there.   Modulars have next to 0 aftermarket.   If there was an aftermarket the way things make power wise would be completely different.   The fact is, at the end of the day, a 5.4 makes shit for power.  A 5.3 will make more power than a 5.4.   The 5.4 is plagued with no support more so than the 4.6.     Maybe now that people are adapting the new 5.0 boss intakes to the 5.4 that will change.  But until then,  almost any intake you throw at the 5.4 does nothing but hurt it.  1.  I didn't say torque wasn't power.   You can make the same/more power with a 4.6 platform without any of the hassles of a 5.4.   Just because it has a tad more torque doesn't mean it will win.   It comes down to power curves.   Like I said though,  it's a rule of thumb.    I didn't say you can't make decent power with a 5.4 but just as you might as well stick to a 4.6 platform.  2.   A big bore, will make more power than either a 4.6 stroker or a 5.4.    3.   Reason being it's that order is simple. I'm referring to real life, with real parts.     The aftermarket for 5.4 and pretty much 4.6 for that matter is shit.   I should have put 4.6 stroker (barely).   But either way,  in real world applications that is a simple rule of thumb for what will make the power because of what you can possibly build it with.  Rule of thumb implies there are exceptions.   The fact of the matter is.   A big bore will out perform a stroker.  I don't know where you are looking, but look it up.    Big bore > stroker.   Modular platforms alrdy have a long stroke and a tiny bore.   Making the stroke longer is not what they need.  And honestly,  if you are considering a 5.3 or a 5.4....    You obviously have not done enough research.   Do the 5.3 and don't bother wasting your time.  The 5.4 will make less power.   Less power....   More hassle.   It's a trend.... odd.  Why will it make less power?   0 support and a much smaller bore.   If you have the money and want power and you do not do a big bore, you haven't done your research.And a 5.4 with close to 400hp is not impressive especially with aftermarket heads.    There are tons of guys who have 4.6's either stroked, BB, etc and make that (with the 5.3 making the most power from that group)    Hell, there are guys who make close to 350 with pi heads (and NPI heads for that matter).   So you can't make another 40-50hp with another 50 cubes alone?  let alone aftermarket wedge heads?  Reallly?  Sounds like a waste of time...</blockquote>