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Author
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Topic: Difference between 99, 2000, 01-2004 mustang 4.6 motor
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Kb69fastback
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Member # 13054
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posted
 
 
I'm looking for a 2000 mustang 4.6 2v motor but everything I'm finding is 2000 specific. Then 2001-2004 are the same
My question is, what's so different on the motors?
Am I able to get a 2001-2004 motor for my 2000 and if so then what do I have to do to switch it over?
Posts: 90 | From: Roseville ca | Registered: Jul 2013
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Built88LX
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Member # 10758
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posted
Should be a pretty straight forward swap
[ 2015-12-20, 11:47 PM: Message edited by: Built88LX ]
Posts: 2390 | From: $acramento | Registered: Mar 2011
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70stang351w
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Member # 9948
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posted
cam bolts are pressed on 99-early 01. and valve covers are different that's all i can remember
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1996 GT VERT /32v MOD - SOLD
1970 Mustang Coupe M-Code 351w
Posts: 1419 | From: 925 | Registered: Apr 2010
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Kb69fastback
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Member # 13054
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posted
Also says something about flywheel bolts are different? 6 and 8 bolts.
So should I be able to use a motor from a 2001-2004 or what would I have to do?
Posts: 90 | From: Roseville ca | Registered: Jul 2013
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foxbodyCJ
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Member # 13674
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posted
96-98 or 01-04 have 6 bolt cranks and are referred to as Romeo , 99-00 are referred to as Windsor engines, 8 bolt flywheels and you can tell the difference by the number of valve cover bolts. Windsor engines have 13 or 14 bolts ( don't remember exactly) Romeo engines 01-04 have 11 bolts. I recently blew up my 04 engine and used a 96 short block and some MMR heads, I used the same flywheel I had on my 04.
Short answer if you use a romeo block you need to grab a flywheel everything else is interchangeable
Posts: 39 | From: North bay | Registered: Jul 2014
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Saleen 00-768
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Member # 9379
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posted
The types of differences between these years shouldn't matter much in regards to a swap.
Adding to differences already mentioned:
99-early 01 are Windsor engines and 02-04 are Romeo engines.
99-early 01 uses full floating wrist pins, 02-04 are pressed.
99-early01 use a (better) 10.5" clutch & 8 bolt flywheel, 01-04 uses 11" clutch and 6 bolt. McLeod makes a flywheel to allow an upgrade to the 10.5" clutch
99-early 01 use t45 trans 02-04 switched to tremec tr3650
99-early 01 have different length water pump shaft meaning they use different pulleys.
01-04 has the updated intake manifold w/ aluminum coolant cross over
99-01 also uses a different type of maf sensor with an external air temp sensor placed into the intake tube. in 2002-04 has the sensor built into the maf meter. (For motor swap, use the same year maf as Your car NOT the motor)
Late 01-04 switched to 21lb injectors from 19lb on 99-00
(Use the injectors that match the year of the car NOT the motor)
The 99 4.6 uses a 3 bolt belt tensioner with a longer belt than 00-04
[ 2015-12-21, 01:19 PM: Message edited by: Saleen 00-768 ]
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'00 Saleen SC #768
'90 GT
'90 California Edition (sold)
'87 Saleen #264 (sold)
Posts: 1664 | From: NOR✯CAL | Registered: Aug 2009
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Kb69fastback
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Member # 13054
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posted
Wow you guys are very helpful. Thank you for the quick and great responses
Posts: 90 | From: Roseville ca | Registered: Jul 2013
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