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4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.
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Old 03-10-2011, 10:48 AM   #11
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I see that a 5.4l 2v is pretty straight forward. Just need an adapter plate for the intake, and maybe some slight modification to the exhaust. I can use same ECU, and wire harness. I don't know much about the MarkVIII, will it need a new wire harness and ECU?
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Old 03-10-2011, 10:51 AM   #12
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I down for anything, I definitely want to make it better than it was so I feel better about how much money I already have into it :/

3k is what I'm looking at give or take.
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Old 03-10-2011, 10:56 AM   #13
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go to MMR's website and check their prices. I think they even have a layaway or payment plan option on there. You wont get your motor till it's payed off but it's an option..

http://www.modularmustangracing.com/
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Old 03-10-2011, 12:42 PM   #14
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MarkVIII engine is really easy you dont need adapters, modify intake/exhaust nor wiring harness or ECU.... the reason I said go with a 4V is because they respond to mods A LOT better than the 2V engines.... But another option is to go with stock 2V heads, MMR shortblock and later on the road throw a SC on....
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Old 03-10-2011, 03:12 PM   #15
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I'm taking it apart now. I had a mechanic look at it and there is no compression in the engine so I think my heads are bad. That might explain the coolant coming out of the exhaust. Am I wrong? I don't see a whole in the block, and I cant find where all the oil came out.

I'm trashing the block no matter what, but I want to find out if my heads are bad. Is that something I can without taking the engine out?
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Old 03-10-2011, 03:13 PM   #16
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I'm actually kind of excited the 2v is done. Time for something better
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Old 03-10-2011, 08:31 PM   #17
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honestly the Mark VIII is like buying the non-pi version of the 2v in respect to 4v's. You will get 280-300 out of it. They are not impressive, but would be a decent replacement. I would stick with and build a 2v if I were you, or get a block with decent heads (unlike the mark viii )
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Old 03-11-2011, 05:09 AM   #18
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Quote:
Originally Posted by 0949er View Post
honestly the Mark VIII is like buying the non-pi version of the 2v in respect to 4v's. You will get 280-300 out of it. They are not impressive, but would be a decent replacement. I would stick with and build a 2v if I were you, or get a block with decent heads (unlike the mark viii )
Only difference betweent he mark viii and the 96-98 cobras is the intanke manifold, absence of the forged crank and a small variation on cam specs. Its only a power difference of maybe 15HP.
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Old 03-12-2011, 03:12 PM   #19
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Alright guys I appreciate all the advice and I have decided on a 5.4 2v. Im going to try and get this done within the month. I'll take a lot of pics and do a write up on the finished swap.
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Old 03-15-2011, 03:14 PM   #20
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Cool. Can't wait to see how it goes for you. "No Replacement for Displacement". And if thats not enough you could always add a s/c or something latter.
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Old 03-15-2011, 03:14 PM
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