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S-197 Mustangs
FR500C Intake
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<blockquote data-quote="debit_free_2010" data-source="post: 15404420" data-attributes="member: 127120"><p>You can get well north of 500rwhp with a big bore, big 4-V head setup if your pockets are deep enough, I can't find the article but Roush made nearly 600rwhp with one of their high compression 5.0l Cammer engines using GT Supercar heads in the early S197 competition cars in 2006/7.</p><p></p><p>For the most part, modular 4V heads are interchangeable between the 3v 4.6 and 5.4, a couple of the castings require welding oil return passages but they will bolt on.</p></blockquote><p></p>
[QUOTE="debit_free_2010, post: 15404420, member: 127120"] You can get well north of 500rwhp with a big bore, big 4-V head setup if your pockets are deep enough, I can't find the article but Roush made nearly 600rwhp with one of their high compression 5.0l Cammer engines using GT Supercar heads in the early S197 competition cars in 2006/7. For the most part, modular 4V heads are interchangeable between the 3v 4.6 and 5.4, a couple of the castings require welding oil return passages but they will bolt on. [/QUOTE]
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