P-51 523 dyno sheets and pics of motor - 460 Ford Forum
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post #1 of 54 (permalink) Old 06-19-2008, 12:02 AM Thread Starter
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P-51 523 dyno sheets and pics of motor

523 c.i. =
4.300 stroke x 4.400 bore - 6.800 rod
p-51 heads out of box untouched 75 cc chambers
pistons= diamond 25cc dish
1.345 c.h.
10.5 to 1
motorsport m429 single plane intake
carb-pro systems 1050 dominator
cam=comp solid roller grind FF 4600R-1477R-R110
gross lift 702/702
[email protected] .020 280/288
[email protected] .050 248/256
lobe sep 110
installed intake C.L. 110
valve [email protected] .050 int: 14 btdc 54 abdc
ext: 58 bbdc 18 atdc
2" into 3 1/2" Long tube tubular automotive headers
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post #2 of 54 (permalink) Old 06-21-2008, 05:28 PM
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DD is predicting 623 HP @5500 and 635 lb-ft @4500.

The flow numbers I used are for P-51 heads with basic mild cleanup.

Brad
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post #3 of 54 (permalink) Old 06-22-2008, 12:21 PM Thread Starter
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Thanks Brad
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post #4 of 54 (permalink) Old 07-20-2008, 12:08 PM
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if you want more get somebody to make make you a set of 2.1/4" primaries with 4" collector headers, big ford's like to breathe

IF AT FIRST YOU DONT SUCCEED-----------------SPEND MORE MONEY
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post #5 of 54 (permalink) Old 08-02-2008, 11:20 PM
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That thing should make closer to 750. Kaase made 700 with those heads on a 466 crate shortblock. He made around 750 on a FRPP 514 (521 actually) shortblock.

John


87 Mustang, 514, glide, etc...
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post #6 of 54 (permalink) Old 08-12-2008, 07:22 PM Thread Starter
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got it dynoed

got it dynoed, as soon as i have time i will scan the sheets and post them
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post #8 of 54 (permalink) Old 08-17-2008, 06:50 PM
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Very impressive numbers ..Well done
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post #9 of 54 (permalink) Old 08-17-2008, 07:37 PM
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Another good advertisement for P-51 heads. Job well done.
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post #10 of 54 (permalink) Old 08-17-2008, 08:47 PM
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It's not a pleasure to say this but, if that combination made ONLY 630 horsepower, it wouldn't have been good.

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post #11 of 54 (permalink) Old 08-17-2008, 08:52 PM
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i seen 701.1 if my eyes are right
post #12 of 54 (permalink) Old 08-17-2008, 09:32 PM
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701 hp with 10.50 compression...bump it to 13.1 and its 750 + hp
post #13 of 54 (permalink) Old 08-17-2008, 09:38 PM
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Quote:
Originally Posted by Brad Johnson
DD is predicting 623 HP @5500 and 635 lb-ft @4500.
Brad
Quote:
Originally Posted by rmcomprandy
It's not a pleasure to say this but, if that combination made ONLY 630 horsepower, it wouldn't have been good.
Quote:
Originally Posted by Northwest outlaw
i seen 701.1 if my eyes are right
I think this is what Randy was referring too.....

Impressive numbers...great job.

mike
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post #14 of 54 (permalink) Old 08-18-2008, 05:55 PM
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YES ... around 700 HP is more in line with where it should be.

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post #15 of 54 (permalink) Old 08-19-2008, 05:19 PM Thread Starter
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motor

Thanks but the ones who deserve the credit are Jon Kaase for the awesome heads and his guy Roger who I dealt with for the comp cam and other parts and Gene Pearson and Darrin Gould at Performance Concepts for the machining and assembly, and this board and its members, especially Carl from carsbycarl for the pistons. All I contributed was my overtime savings and a bunch of dumb questions!
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