P-51 questions - 460 Ford Forum
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post #1 of 4 (permalink) Old 08-01-2007, 04:58 PM Thread Starter
BFT
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P-51 questions

Can the P-51's be ported to get more flow, when and if one is ready to grow. Just wondering cause these numbers look pretty good for out the box heads. Just wondering if they could be ported to flow I=450 ish, E=325 ish? Just trying to get a good head for the price that will alow me to grow without having to have designated parts for the heads(other than pistons)
Flow Chart as Delivered @ 28" Superflow 600 (per Kaase website)
P51's out the box
Intake .100 105
.200 175
.300 258
.400 330
.500 375
.600 395
.700 401

Exhaust .100 103
.200 137
.300 170
.400 199
.500 223
.600 242
.700 251

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Randal
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post #2 of 4 (permalink) Old 08-01-2007, 05:35 PM
dfree383
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Those numbers are a little on the heavy side from what I've been told, typical on them as delivered intakes is in the 370 +/- range. The Posted numbers are probably "optimum numbers" and everything varies due to weather conditions, Pipe, no Pipe, bore size, Guy doing the bowl blend getting tired, Ect.

Charlie and Scott have been working on them and they are getting higher numbers but I'm not sure your going to see those kinds of numbers out of them, especially the 325cfm on the factory style exhaust.

I would call one of them up and discuss it with them and figure out what you need. if your looking for heads with that kind of flow maybe a set of A460's would be a better choice.

I just purchased a set from Scott and with the out of the box heads on a 521" motor with a XR292R It looks like 700-725 hp is possible.
post #3 of 4 (permalink) Old 08-01-2007, 05:38 PM
 
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c. evens flow tested them and if i remember right intake flow was around 380. these heads are at near max potential now per kaase. if you need more later i would by a set of A heads and run them unported and when you need more send them out for porting.
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post #4 of 4 (permalink) Old 08-01-2007, 05:51 PM Thread Starter
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That has been my thoughts, just wanted some info to back up. Thanks for the replies guys!!!

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Randal
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