who has taken the 99-04 HEAD SWAP PLUNGE for a 96-98!?!? ..how easy/hard is it to do - Mustang Evolution

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Old 10-12-2010, 10:36 PM   #1
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Exclamation who has taken the 99-04 HEAD SWAP PLUNGE for a 96-98!?!? ..how easy/hard is it to do

insight pls, do I need a kit? can I just pull it from the junk yard and bolt it down to my 1998 4.6 ......my car has 100k on her now so should I probbly be looking for heads that have the same milage??? herd it gives 40 to 50 extra ponys
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Old 10-13-2010, 11:03 AM   #2
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Re: who has taken the 99-04 HEAD SWAP PLUNGE for a 96-98!?!? ..how easy/hard is it t

modular2valve on here did this swap. I'll shoot him a PM so he knows about this thread and he can give you the scoop.
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Old 10-13-2010, 01:03 PM   #3
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Re: who has taken the 99-04 HEAD SWAP PLUNGE for a 96-98!?!? ..how easy/hard is it t

putting them on 96-98 raises the compression, you will end up around 285hp~
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Old 10-13-2010, 03:19 PM   #4
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Re: who has taken the 99-04 HEAD SWAP PLUNGE for a 96-98!?!? ..how easy/hard is it t

yes I know that, ......sooo can I just pull it from the junk yard and bolt it down to my 1998 4.6 ......my car has 100k on her now so should I probbly be looking for heads that have the same milage???
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Old 10-13-2010, 11:06 PM   #5
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Re: who has taken the 99-04 HEAD SWAP PLUNGE for a 96-98!?!? ..how easy/hard is it t

The heads does not have to match the mileage of the short block, but I would personally not install high mileage heads on any vechile as these heads are prone to valve seal leaks after some time. Now assuming the short block is in good shape, you can easily find a used set of heads fully assembled, buy a set of new heads, or upgrade to new ported heads. You will need these parts to convert over to the PI heads-

Romeo PI heads/cams
PI intake
Water pump nipple that goes into the block behind the water pump
Crankshaft pulleybolt because they are TTY- Torque to yield- so they can only be used once.
The heater core tube that's for the PI motor that goes onto that water pump nipple because the PI intake is deeper and the NPI tune will not clear.
Ford Racing head swap kit, comes with head gaskets, exhaust gaskets, all new head bolts, and dipstick tube- this will get damaged while taking it out to clear the driver side head removal.
Timing cover gaskets
Intake manifold gaskets
Valve cover gaskets

The swap is pretty straightforward if you have some mechanical experience taking apart things. You will have to time 2 cams, and I would reccommend getting a tune to get the most out of it. It's a night and day difference as you will still be making power beyond 4500 rpms unlike the NPI setup.
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Old 10-13-2010, 11:15 PM   #6
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Re: who has taken the 99-04 HEAD SWAP PLUNGE for a 96-98!?!? ..how easy/hard is it t

thanks!! gonna start ordering parts tomarrow, sounds like a perfect excuse to drink a few beers and have some good times. love working on my baby
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Old 10-14-2010, 10:37 AM   #7
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Re: who has taken the 99-04 HEAD SWAP PLUNGE for a 96-98!?!? ..how easy/hard is it t

No problem dude, if you need help send a shout out
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Old 10-14-2010, 06:23 PM   #8
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Re: who has taken the 99-04 HEAD SWAP PLUNGE for a 96-98!?!? ..how easy/hard is it t

I have pi heads for sale but no intake manifold.
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