Header question, just curious
06-16-2005 | 09:23 AM
#1
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Joined: Feb 2004
Posts: 12,314
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From: Maryland
Header question, just curious
I was told that the headers on the 525EFI are more efficient than the 500EFI for a couple reasons...(A) longer tube length, better scavaging and (B) they are aluminum and dissipate heat faster.... would like to know also if I was to switch would they line up with my current holes in transom...opinions please...Rob
06-16-2005 | 02:22 PM
#2
Rob
Joined: Aug 2001
Posts: 21,637
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From: Ms
Re: Header question, just curious
There not aluminum.I wouldnt think you would see much diff unless you had 700 plus HP.You would Still have to weight the cost diff.
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06-17-2005 | 10:13 AM
#4
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Joined: Oct 2002
Posts: 285
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From: Menasha,WI
Re: Header question, just curious
The longer primary headers do make a significant H.P. improvement in most naturally aspirated motors at 502CI or larger. If the 500 Hp has standard tails the new 525 tails will fit without modification.
