Difference between 03 Mach 1 and 03 Cobra motor?

[Paul's_03SVT]

I know a guy at work that tells everybody that his motor in the Mach 1 is the exact same as the 03-04 Cobra motor minus the blower. I did a search but couldn't find much.

I thought the only thing that was the same was the heads, but I just read a motor trend article that said they are the exact same minus the blower. So what is true? Anyone have a list or breakdown of what is the same or different? :shrug:

 

[Posi]

Compression and the 03/04 have forged internals. Just a couple things that pop into mind.

 

[WeeZee]

forged pistons & rods,eaton M112 supercharger,lower compression

 

[E]

compression, forged pistons and rods, eaton supercharger and let's not forget the cast block versus the aluminum mach block:rockon:

 

[BM1]

The Cobra block is cast iron and is much stronger. Most of the other details have already been mentioned.

 

[Turkish]

MACH:

Aluminum Block
Forged Crank
powdered rods
Hyper. Pistons 10:0:1
Torque Specific Cams
Intake
Timing cover

03-04:

Cast Iron Block
Forged crank, rods, piston 8:5:1
Forced Induction specific cams
Eaton S/C

 

[2KGT]

Heads and cams are exactly the same.

 

[Black Talon]

I know a guy at work that tells everybody that his motor in the Mach 1 is the exact same as the 03-04 Cobra motor minus the blower. I did a search but couldn't find much.

I thought the only thing that was the same was the heads, but I just read a motor trend article that said they are the exact same minus the blower. So what is true? Anyone have a list or breakdown of what is the same or different? :shrug:

He wishes it was LOL

 

[BRMach103]

Heads and cams are exactly the same.

I thought the cams were different also ?? our were better suited for N/A

 

[zlocke17]

i thought the cams were less aggressive on the top end in the mach. and it peaks at different rpms so it cant be the same motor minus a blower

 

[2KGT]

96-98 Cam Specs:
Intake: Primary Lobe: 196 deg @.050/.390 lift
Secondary Lobe: 206 deg @.050/.390 lift
Exhaust: 196 deg @.050/ 390 lift

99/01 Cobra Cam Specs:
Intake: 196 deg @.050/.392 lift
Exhaust: 194 deg @.050/.390 lift

Mach 1, 03/04 Cobra, Aviator, Marauder
Intake: 184 deg @ .050/.394 lift
Exhaust: 196 deg @ .050/.397" lift

 

[Paul's_03SVT]

Thanks guys. :rockon: So a non "gearhead" would say they are not the same, but technically the only thing major that is the same are heads and cams?

He wishes it was LOL

:lol: That is my thoughts.

 

[Mach1Man04]

Thanks guys. :rockon: So a non "gearhead" would say they are not the same, but technically the only thing major that is the same are heads and cams?



:lol: That is my thoughts.

lol and the exhaust manifolds
epper:

 

[Mach1USMC]

03/04 Cobra
- 8:5:1 compression
- Forged rotating assy
- SC
-Camshaft
Theoretical valve lift @ 0 lash—intake (primary and secondary) 10.0 mm (0.3937 inch)
Theoretical valve lift @ 0 lash—exhaust 10.0 mm (0.3937 inch)
Lobe lift —
Allowable lobe lift loss —
Journal diameter 26.962-26.936 mm (1.0615-1.0605 inch)
Camshaft journal bore inside diameter —
Camshaft journal-to bearing clearance 0.025-0.076 mm (0.00098-0.002992 inch)
Runout —


03/04 M1 manual
- 10:1:1
- Forged crank- everthing else= garbage
- CAMSHAFT
Theoretical Valve Lift @ Zero Lash
· Intake (Primary)
10.0 mm (0.3937 inch)
· Intake (Secondary)
10.0 mm (0.3937 inch)
· Exhaust
10.0 mm (0.3937 inch)
End Play 0.025-0.165 mm (0.00098-0.00649 inch)
· Service Limit
0.190 mm (0.007480 inch)
Journal to Bearing Clearance 0.025-0.076 mm (0.00098-0.002992 inch)
· Service Limit
0.100 mm (0.003937 inch) MAX
Journal Diameter (All) 26.962-26.936 mm (1.0615-1.0605 inch)
Bearing Inside Diameter (All) 27.012-26.987 mm (1.0635-1.0625 inch)
Front Bearing Location e
CYLINDER BLOCK
· Head Gasket Face Flatness
0.15 mm (0.006 in) MAX overall
· Head Gasket Surface Finishb


03/04 M1 Auto
- no forged internals
- same compression as the manual Mach

 

[Mach1USMC]

MACH:

Aluminum Block
Forged Crank
powdered rods
Hyper. Pistons 10:0:1
Torque Specific Cams
Intake
Timing cover

03-04:

Cast Iron Block
Forged crank, rods, piston 8:5:1
Forced Induction specific cams
Eaton S/C

Cams are exactly the same....I didn't know either until I looked it up just now. :shrug:

If you really want to know ALL the differences the Eaton conversion list on the registry will tell you. it's 80 plus parts that are different from the Terminator to the Mach.

 

[affirmed]

I thought the mach had basically the same engine as the mercury marauder, similar intake cams as the 5.4L navigator, and the same heads as the terminator.

 

[Bad Karma]

cobra has a way better Kanuter valve also

 

[scotmach]

The Cobra block is cast iron and is much stronger.

That is absolutely not tue.:dw:

 

[Mach1USMC]

That is absolutely not tue.:dw:

ditto

 

[Paul's_03SVT]

That is absolutely not tue.:dw:

What is not true, the fact the block is stronger or that it is cast iron?