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Ed Wright · 04-15-2012, 10:52 PM

But, Alex, if the LT1 is under rated, how can the 5.9 DP be rated the same, and not be even worse? Have you looked at the specs? No way a knowledgable person could compare the two and think "Yeah, those two are the same HP". I have data from someone I trust telling me those heads go 300 CFM right out of the box. My HeadsUp! LT1 SS heads are about 40 behind.

If your talking about the LT1 versus 5.9 DP HP rating I'm sure interested in hearing that one. :-)

That hood deal? Got me. I have taped the scoops up on my WS6 daily driver, it ran the same times both ways. I have dyno tested several on my old chassis dyno. If I gave you twenty dyno sheets, half ram air & half not, you could not tell me which were which. The low restriction exhaust that comes with the hood does not make as much difference as they vary car-to-car due to production tolerances and how they were broken in.

04-15-2012, 10:52 PM	#43
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Ford First "Stocker" Into The Eights But, Alex, if the LT1 is under rated, how can the 5.9 DP be rated the same, and not be even worse? Have you looked at the specs? No way a knowledgable person could compare the two and think "Yeah, those two are the same HP". I have data from someone I trust telling me those heads go 300 CFM right out of the box. My HeadsUp! LT1 SS heads are about 40 behind. If your talking about the LT1 versus 5.9 DP HP rating I'm sure interested in hearing that one. :-) That hood deal? Got me. I have taped the scoops up on my WS6 daily driver, it ran the same times both ways. I have dyno tested several on my old chassis dyno. If I gave you twenty dyno sheets, half ram air & half not, you could not tell me which were which. The low restriction exhaust that comes with the hood does not make as much difference as they vary car-to-car due to production tolerances and how they were broken in. __________________ Ed Wright 4156 SS/JA Last edited by Ed Wright; 04-15-2012 at 10:56 PM.