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GT40
Ford GT
Pics: '05 Ford GT vs. '01 Navi Heads...
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<blockquote data-quote="Fourcam330" data-source="post: 2173963" data-attributes="member: 24445"><p>Remembering that flow #s are really just magazine fodder, that a 270/190 head can kick the shit out of a 330/250 head since it's the entire combination that matters, and quite often the head with less flow makes more HP...</p><p>I haven't seen any bench results for Dodge/Hemi heads yet, however I can tell you that Gen. II Viper heads are absolute shit by comparison to pretty much any modern performance head. After porting they're lucky to see 290cfm intake. </p><p>LS7 heads allegedly flow 360ish on the intake (not sure what lift but at 28") with the factory CNC port. </p><p>GT heads flow 309/255cfm @ .500" lift @ 28" when stock and can see up to 370/310cfm on a stock bore (3.55") and ~400/330cfm on a 3.70" big bore. All modular heads are limited flow wise by the smallish valve seats/valves size. Makes you really beg for the old school 4.00x3.00" 5.0L bottom end dimensions doesn't it ;-)</p><p>Check out the new thread in the GT500 forum. I posted a lot of basic info on the different Ford 4v heads.</p></blockquote><p></p>
[QUOTE="Fourcam330, post: 2173963, member: 24445"] Remembering that flow #s are really just magazine fodder, that a 270/190 head can kick the shit out of a 330/250 head since it's the entire combination that matters, and quite often the head with less flow makes more HP... I haven't seen any bench results for Dodge/Hemi heads yet, however I can tell you that Gen. II Viper heads are absolute shit by comparison to pretty much any modern performance head. After porting they're lucky to see 290cfm intake. LS7 heads allegedly flow 360ish on the intake (not sure what lift but at 28") with the factory CNC port. GT heads flow 309/255cfm @ .500" lift @ 28" when stock and can see up to 370/310cfm on a stock bore (3.55") and ~400/330cfm on a 3.70" big bore. All modular heads are limited flow wise by the smallish valve seats/valves size. Makes you really beg for the old school 4.00x3.00" 5.0L bottom end dimensions doesn't it ;-) Check out the new thread in the GT500 forum. I posted a lot of basic info on the different Ford 4v heads. [/QUOTE]
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Pics: '05 Ford GT vs. '01 Navi Heads...
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