500 hp - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 90 (permalink) Old 12-28-2008, 06:39 AM Thread Starter
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500 hp

As far as building an engine goes, what would NEED to be done to hold it together at the 500hp range... studs, girdle, etc.

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post #2 of 90 (permalink) Old 12-28-2008, 06:57 AM
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Re: 500 hp

studs, valve springs, and pushrods. as long as you have forged rods.

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post #3 of 90 (permalink) Old 12-28-2008, 07:23 AM
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Re: 500 hp

Some forged rods dont make it and some do

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post #4 of 90 (permalink) Old 12-28-2008, 08:30 AM
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Re: 500 hp

mine didn't
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post #5 of 90 (permalink) Old 12-28-2008, 01:42 PM
 
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Re: 500 hp

For 500 on a 7.3 I don't think you really need studs. I used to think so but have been proven wrong as the 7.3 head bolts don't streatch like on the 6.0. Been in the 49Xs for awhile, run wide open at the track. But if you have the heads off anyway...
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post #6 of 90 (permalink) Old 12-28-2008, 01:53 PM
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Re: 500 hp

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Originally Posted by Muley View Post
For 500 on a 7.3 I don't think you really need studs. I used to think so but have been proven wrong as the 7.3 head bolts don't streatch like on the 6.0. Been in the 49Xs for awhile, run wide open at the track. But if you have the heads off anyway...
Really?? You're still running stock bolts at almost 500hp? That seems pretty impressive to me. I thought for sure when I switched to hybrids I would NEED to do studs to keep the heads on the block. I know cyl. pressure and boost are the 2 very important things to keep in mind when talking about blown headgaskets, but I thought I would need studs for sure to make 500 and have a reliable DD. Who's doing your tuning Muley?

On edit, Live tuned by Jody still?

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post #7 of 90 (permalink) Old 12-28-2008, 02:31 PM
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Re: 500 hp

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Originally Posted by PSDfan99 View Post
Really?? You're still running stock bolts at almost 500hp? That seems pretty impressive to me. I thought for sure when I switched to hybrids I would NEED to do studs to keep the heads on the block. I know cyl. pressure and boost are the 2 very important things to keep in mind when talking about blown headgaskets, but I thought I would need studs for sure to make 500 and have a reliable DD. Who's doing your tuning Muley?

On edit, Live tuned by Jody still?
I was running stock head bolts too at 481HP. Never had an issue with them. Now that my motor is apart, I have some H-11's going in (thanks Blowby).

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820 HP on 05/19/12

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post #8 of 90 (permalink) Old 12-28-2008, 03:12 PM
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Re: 500 hp

Forged rods, head studs, and possibly valve springs. Most importantly, correct tuning to keep the stuff together. If done right, there should be 0% worry about breaking

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post #9 of 90 (permalink) Old 12-28-2008, 03:57 PM
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Re: 500 hp

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Originally Posted by PowerstrokeJunkie View Post
Forged rods, head studs, and possibly valve springs. Most importantly, correct tuning to keep the stuff together. If done right, there should be 0% worry about breaking


New engine is getting valve springs, DI Pushrods from PTSUPERD, and H-11's among other things.

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post #10 of 90 (permalink) Old 12-28-2008, 04:05 PM
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Re: 500 hp

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Originally Posted by PowerstrokeJunkie View Post
Forged rods, head studs, and possibly valve springs. Most importantly, correct tuning to keep the stuff together. If done right, there should be 0% worry about breaking
I don't know about 0% chance maybe a lesser chance. It is after all something mechanical.

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