4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

LOWER END

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Old Dec 14, 2008 | 08:37 AM
  #1  
04gtdrop's Avatar
04gtdrop
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Joined: Dec 2008
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From: CALIFORNIA/ LOUISIANNA
Question LOWER END

im tryin to get my gt to at least 600 rwhp

i know i have to reinforce my lower end but i dont know wat i have to do exactly

i know that i have to get better pistons and rods wat else do i have to do and about how will it cost approx.

plus what brand is the best to use


i would appreiciate al feedback/info
Old Dec 14, 2008 | 09:49 AM
  #2  
cobra dreamer's Avatar
cobra dreamer
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get a whole forged rotating assembly or buy a short block cause at around 450 hp is all the stock set up can take
Old Dec 14, 2008 | 10:12 AM
  #3  
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Mustang_NTriangle
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From: MA
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Well if your goal is 600 wrwp horse power you are going to need deep deep pockets. You will need a new block, forged internals, injectors, dual fuel pumps, built rear end 31" axles, new diff, and diff cover,to support that kind of power, new tranny, clutch, suspension, brake upgrades, and a blower and or a power adder like nitrous, headers etc. You are looking at 15 plus K.
Old Dec 14, 2008 | 04:58 PM
  #4  
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GTRACER88
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Originally Posted by Mustang_NTriangle
Well if your goal is 600 wrwp horse power you are going to need deep deep pockets. You will need a new block, forged internals, injectors, dual fuel pumps, built rear end 31" axles, new diff, and diff cover,to support that kind of power, new tranny, clutch, suspension, brake upgrades, and a blower and or a power adder like nitrous, headers etc. You are looking at 15 plus K.
What??? You mean 15K? I hope your kidding right.
Old Dec 14, 2008 | 07:29 PM
  #5  
LynnBob Mustang's Avatar
LynnBob Mustang
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From: PA
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Originally Posted by GTRACER88
What??? You mean 15K? I hope your kidding right.
Why would he be kidding???

You can't just put a 600HP motor against any of the stock components. It is trickle down affect, you gotta beef up everything around it to handle and compensate for the power.
Your tranny better be able to put that power to the axle without ripping itself apart and sending shrapnel in the **** pit when it comes apart, your rear end better be built up to get the power to the ground without ripping and twisting itself apart. Your suspention needs to able to keep the car planted and be able to put he power to the ground and then you better be able to stop the thing safley.

You wanna play you gotta pay. It is gonna cost you some big $$$.

Lynn
Old Dec 14, 2008 | 08:33 PM
  #6  
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livefast1
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why would he need a new block when the stock iron block is capable of 1000 horses.
Old Dec 14, 2008 | 09:00 PM
  #7  
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mustangman281
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From: tn
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No need for a new block since there is no other modular blocks stronger then stock. But it will cost around $15k to get 600rwhp. I have spent just over $20,000 to get where I am and I just spent $10,000 of my buddys money to get him 500rwhp and we haven't ordered everything yet.
Old Dec 14, 2008 | 09:27 PM
  #8  
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teej281
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From: South Central PA
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New rotating assembly would be fine for the bottom end. and your stock tranny will in fact start flying apart at those power levels.
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