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Old 04-19-2010, 08:19 PM   #3518
joelster

 
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Drives: '94 Z28+ '15 Z/28
Join Date: Jun 2009
Location: Cheektowaga, NY
Posts: 1,320
Quote:
Originally Posted by assasinator View Post
intake ports on the 5.0l coyote are 195cc. far smaller than ls-3 heads.
You CANNOT effectively compare one family of cylinder heads to another and bring up port volume. It is 100% irrelevant, unless the 2 cylinder heads have exactly the same length from the intake sealing area to the valve opening. Imagine a cylinder head that was 2 feet wide feeding a 350 chevy. The intake port is the diameter of a quarter (think paper towel tube) but 1.75 feet long. The head would have an enormous 375cc intake port. How do you think it would flow compared to a 227cc AFR head? You can compare minimum cross-sectional area. That is what matters. That is the pinch point that dictates a lot of the flow (not to mention the valve pinch point, lol) Having more valves is almost always a good thing.
Quote:
Originally Posted by assasinator View Post
the coyote makes similar power from superior flowing heads, more advanced chambers(penatroof>inline 2v), and higher rpm. cams are .475 lift. duration is unknown as of now.
That stuff I will agree with!
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