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1999 Cobra Rebuild Suggestions
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<blockquote data-quote="shurur" data-source="post: 16417270" data-attributes="member: 113850"><p>OK..well NA 4.6L you can get 360+ RWHP. and that is with cams and bolt-ons.</p><p></p><p>You would need to stroke it to 5.0L or go <strong>FI</strong> to get 425 RWHP...</p><p>You probably would need to bore/stroke it to a 5.3L to get 450+ RWHP or again go FI.</p><p></p><p>I know I post this often,,but..</p><p></p><p>NASVT (Todd Warren) Recipe fixed!!!</p><p>NA ~320 RWHP with 99-01 DOHC C-Head 4.6L:</p><p>K&N filter</p><p>OEM Cams</p><p>March damper</p><p>March hydroboost and WP pulleys</p><p>Long tubes</p><p>Hi Flow Cats/Cat Delete mid-pipe</p><p>Tune (canned..more $ for real tuner tune)</p><p></p><p>360-370 RWHP:</p><p>NA SVT (Todd Warren) custom cams properly degreed.</p><p>short runner. (only If running above 7k RPM)</p><p>Tune</p><p></p><p>verts need subframe support.</p><p>Stifflers system seems the best these days.</p></blockquote><p></p>
[QUOTE="shurur, post: 16417270, member: 113850"] OK..well NA 4.6L you can get 360+ RWHP. and that is with cams and bolt-ons. You would need to stroke it to 5.0L or go [b]FI[/b] to get 425 RWHP... You probably would need to bore/stroke it to a 5.3L to get 450+ RWHP or again go FI. I know I post this often,,but.. NASVT (Todd Warren) Recipe fixed!!! NA ~320 RWHP with 99-01 DOHC C-Head 4.6L: K&N filter OEM Cams March damper March hydroboost and WP pulleys Long tubes Hi Flow Cats/Cat Delete mid-pipe Tune (canned..more $ for real tuner tune) 360-370 RWHP: NA SVT (Todd Warren) custom cams properly degreed. short runner. (only If running above 7k RPM) Tune verts need subframe support. Stifflers system seems the best these days. [/QUOTE]
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