mach 1 motor vs cobra motor

[89stang]

What is the difference between these motors?The 03-04's. Are the internals the same? Just wondering since the mach motor can't handle more than 450hp as apposed to the cobra which 500 is easy to get.

[White5.0]

no they're different.

03 cobra has an iron block whereas the mach's had an aluminum one (not 100% on this one but pretty sure).

cobra had forged manley H beam rods from the factory, forged crank, forged pistons. mach's i believe had cast crank if you had an auto trans and forged if you had a 5 speed (i have no idea why), cast rods, and regular pistions.


also mach 1 had higher compression being N/A

[White5.0]

im also guessing the heads are the exact same but the cams are different between the two cars because the cobras are supercharged

[WSFrazier]

I would actually be interested in the differences as well. Looking to get a Mach 1 over a Cobra to save money and get a solid rear.

[somethingclever]

I would actually be interested in the differences as well. Looking to get a Mach 1 over a Cobra to save money and get a solid rear.


fast mach 1 = more expensive than fast cobra

[White5.0]

fast mach 1 = more expensive than fast cobra


true story.

[Terminated]

Mach1 has same motor as a 99/01 Cobra.

[ModularMike]

I was under the impression a Mach I had an iron block?


Edit: And I guess I was wrong...

[jaa55]

No the 99-01s have different heads and cams than mach 1s. some 01s have a WAP block some have a teksid. machs all have have WAPs, 99s have teksids....they all are aluminum, ryan was right about the cranks in the mach 1s, forged if standard shift

03-04 have an iron block
03-04 mach heads = same casting as 03-04 cobra heads

[jaa55]

also the reason why the machs cranks were forged or not forged is because thats the only 4.6 4v in a mustang put in front of an auto trans, so they just used the 6 bolt flexplate to mate it to the auto. 8 bolt if standard shift

[97LaserRed]

Mach 1s heads are the same as 03-04 cobra but the cams are more aggressive

[97LaserRed]

Mach1 has same motor as a 99/01 Cobra.

Bottom end yes, heads and intake no

[jaa55]

haha bottom line, mach 1 engine is similar to a 99/01 cobra but its one of its own completely.........marginally better than cobras, aviator and marauders have the same long block as well

[shockstang]

also the reason why the machs cranks were forged or not forged is because thats the only 4.6 4v in a mustang put in front of an auto trans, so they just used the 6 bolt flexplate to mate it to the auto. 8 bolt if standard shift


I always wondered why there was a difference. I just thought that it was because a manual shift would be harder on the crank than an auto.

[White5.0]

moral of the story: Buy a terminator :veryhappy:

[Stroked03Cobra]

moral of the story: Buy a terminator :veryhappy:

+1 on that!