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<blockquote data-quote="TORQUERULES" data-source="post: 4569910" data-attributes="member: 29411"><p>Duh. Just quoting what I have seen. I have seen the BBR shit, but have heard things from other sources. Looking at the flow gotten from these heads <a href="http://www.nmraracing.com/forums/showthread.php?t=46006" target="_blank">http://www.nmraracing.com/forums/showthread.php?t=46006</a>, with a bump in compression (not huge mind you) and proper camming, etc. 350whp is possible and not at huge rpm either. Now is it smog legal or possible for the factory to repeat? Probably not, but if guys can get 300whp with bolt-ons (many not smog legal I know) then with work on the heads, etc., the factory can do that within emissions constraints. Sure it is not 380 or 400 flywheel, but 350 flywheel is not bad for a 4.6 liter V-8 with moderate compression, emissions equipment, and small heads.</p><p></p><p></p><p>I do have a couple of friends making 300whp with their 3Vs N/A with bolt ons.</p><p></p><p>I hear you and I agree. The main reason the LS Chevy motors are so popular is the head flow. Plain and simple, but also cubic inches has a lot to do with their potential. What I was getting at is it can be done with a 4.6 and today's technology. But why? Got with the CID and make it easy on yourself. I am all for this 5.4 idea if it gets a nice high powered N/A Mustang to the masses (like I stated in an earlier post).</p></blockquote><p></p>
[QUOTE="TORQUERULES, post: 4569910, member: 29411"] Duh. Just quoting what I have seen. I have seen the BBR shit, but have heard things from other sources. Looking at the flow gotten from these heads [URL="http://www.nmraracing.com/forums/showthread.php?t=46006"]http://www.nmraracing.com/forums/showthread.php?t=46006[/URL], with a bump in compression (not huge mind you) and proper camming, etc. 350whp is possible and not at huge rpm either. Now is it smog legal or possible for the factory to repeat? Probably not, but if guys can get 300whp with bolt-ons (many not smog legal I know) then with work on the heads, etc., the factory can do that within emissions constraints. Sure it is not 380 or 400 flywheel, but 350 flywheel is not bad for a 4.6 liter V-8 with moderate compression, emissions equipment, and small heads. I do have a couple of friends making 300whp with their 3Vs N/A with bolt ons. I hear you and I agree. The main reason the LS Chevy motors are so popular is the head flow. Plain and simple, but also cubic inches has a lot to do with their potential. What I was getting at is it can be done with a 4.6 and today's technology. But why? Got with the CID and make it easy on yourself. I am all for this 5.4 idea if it gets a nice high powered N/A Mustang to the masses (like I stated in an earlier post). [/QUOTE]
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