T O P I C R E V I E W
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foxstang
Member # 7447
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posted
wat is the diff. between a 96-98 cobra engine angd a mark VIII engine and wat is the hp diff
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RiverCityAuto
Member # 7664
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posted
The biggest difference the Cobra has a forged crank.... with 8 bolts...... and the MK VIII has a cast crank with 6 bolts.... the intakes are different and the exhaust cams are different... but you are looking at only about 10-15 hp difference.......
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JohnB
Member # 969
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posted
Timing cover, Intake, oil pan, crank, exhaust manifolds, exhaust cams, and a few other small items. You won't see a difference if the existing Cobra parts are swapped over.
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foxstang
Member # 7447
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posted
thanks for the info
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1fast281
Member # 4670
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posted
The timing cover is the same as the Cobra. 93-95 Mark VIII's don't have Beehive valvesprings, only 96-98 have them. [ May 23, 2007, 08:27 PM: Message edited by: 1fast281 ]
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foxstang
Member # 7447
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posted
would it be hard putting in a 98 gt and would it be worth it
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1fast281
Member # 4670
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posted
Depends on what your plans are for the car.
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foxstang
Member # 7447
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posted
my cuzin was thinking of doin it cuz his motors messed up. i'm not sure wat he wants. he wants to switch to a 4vi and wants to run it n/a right know ang get some good power out of it. but right know its just an option until he figures out wats wrong with motor.
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1fast281
Member # 4670
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posted
You can get the MK8 motor cheap, it's worth it.
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foxstang
Member # 7447
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posted
yeah i thoght so too cuz i saw some for pretty cheap on ebay. wat ecu would u use.98 cobra or mark 8 [ May 26, 2007, 11:36 PM: Message edited by: foxstang ]
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1fast281
Member # 4670
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posted
If the 98 GT has an auto you need the Mark VIII ECU to control the 4R70W and the IMRC's, if not you can use the Cobra ecu.
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foxstang
Member # 7447
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posted
thanks for the info
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