Difference between 01-03 cobra motor?

stang120gt

Member

Jun 28, 2004

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Michigan

Nov 11, 2005

#1

• Nov 11, 2005

• #1

Im just curious what is the difference between the 01-03 cobra motor. Besides the super charger did they do anything to the interanals of the motor on the 03 or what? I no they're both dohc motors but what is the difference if there is one?

Thanks

 

795.0pacecar

lover of pudgy polygamists

Jul 11, 2003

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Senoia, GA

Nov 11, 2005

#2

• Nov 11, 2005

• #2

I know the 03s have an iron block and forged internals, but I dont know if there are any other differences.

 

T

thinker

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Jun 26, 2002

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Corona, Ca

Nov 11, 2005

#3

• Nov 11, 2005

• #3

The 01 cobra uses a cast aluminum block and the 03 is on a cast iron block. The 03 also has alum heads and manley forged h-beam rods. Thats all I know though, I'm sure someone else around here has more info man.

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

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Nov 11, 2005

#4

• Nov 11, 2005

• #4

you guys forgot thebiggest one.... BLOWER!

 

90_Red_LX

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Sep 29, 2003

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Nov 11, 2005

#5

• Nov 11, 2005

• #5

The 03 cams are also less aggressive than the 01's iirc.

 

T

tjm73

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Aug 3, 2000

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Nov 11, 2005

#6

• Nov 11, 2005

• #6

Different front timing chain cover. Forged dished pistons. Manley H-Beam Rods. Iron 4.6 truck block. Same heads (I believe). Not sure about the cams.

You should search/post this question in the 4.6 Tech forum and the SVT forum. They will know for sure.

 

1991GreeNLX

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Jul 2, 2004

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Houston TX

Nov 11, 2005

#7

• Nov 11, 2005

• #7

yeah the cams are less agressive on an 03 cobra. Same as comparing the MACH1 to the 01 COBRA.
The mach1 has less HP then the 01 cobra, but a mach 1 can take a 01 cobra of the line the 01 cobra are a bit sluggish of the line but nothing a set of gears cant take care of

 

S

Scorcher2005

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Nov 11, 2005

#8

• Nov 11, 2005

• #8

check the svt forums

 

5spd GT

"the 5.0 owns all"

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Aug 7, 2002

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Nov 11, 2005

#9

• Nov 11, 2005

• #9

SVT forums will give you better detail on the differences.

I know the 03/04's are ARP equipped on the bottomend.

A Mach 1 and 99,01 cobra have the same powerband. Only significant difference (if that) is the solid vs. irs axle.

 

D

Daggar

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Jul 19, 2004

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Nov 11, 2005

#10

• Nov 11, 2005

• #10

Foxfan88 said:

you guys forgot thebiggest one.... BLOWER!

Click to expand...

I don't think anyone missed it at all. Look at the first post. lol

 

timeless2

Vi Veri Veni Versum Vicus Vici

Admin Dude

Nov 29, 1999

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the Shadow Gallery

Nov 11, 2005

#11

• Nov 11, 2005

• #11

Daggar said:

I don't think anyone missed it at all. Look at the first post. lol

Click to expand...

Ouch....that will leave a mark.

 

S

strokedandblown

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Nov 11, 2005

#12

• Nov 11, 2005

• #12

The 03 + (04) is better thats differance

 

stang120gt

Member

Jun 28, 2004

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Michigan

Nov 11, 2005

#13

• Nov 11, 2005

• #13

well i did post on the svt forums and this is what they came up with

they share the same 8-bolt steel crankshaft, although its balanced differently for the 03 heavier rods.

eveyrthing else is different.

03 iron block
01 aluminum block

03 h-beam rods and forged pistons
01 powdered metal rods and impact extruded aluminum pistons

03 better flowing heads
01 smaller exhaust port

03 aluminum flywheel
01 steel?

Thanks for the info guys