mach 1 block vs cobra block

[RedDaemon]

what the heck is the difference between the BLOCKS themselves (lets say 03 mach 1 block vs 03 cobra block)?...not the engines, we all know the difference in performance

is it just a material difference? ive tried looking up specs on each but noone really has anyhting on it, ive been thinking about the mach 1 block as it is cheaper and more readily available than the standard 03 cobra block. if there isnt much of a difference i think im gunna go with the mach 1 block as my foundation...a 4v is a 4v right? (if i can get my project off the ground that is)

if someone has a good website regarding this type of info, please share it with me as i am in the researching phase of my project, thanks!

 

[03ghoststang]

well besides the fact that the motor for 03-04' mach 1 is an all aluminum block and the 03-04' Cobra is cast iron.....the specs are the same as far as the stroke and bore even down to the 4V's, but the mach 1 C/R is pretty high i believe its 9.8:1 but not entirely sure

 

[Crzyhrse]

If it's just the blocks, the Mach 1 is an aluminum block. The Cobra is an iron block. Mach 1 compression is 10:1.

 

[RedDaemon]

If it's just the blocks, the Mach 1 is an aluminum block. The Cobra is an iron block. Mach 1 compression is 10:1.

thanks, thats def a good thing to know itll be a little trickier getting one of those blocks up to performance par with the actual cobra blocks huh? lol itll be just as expensive to do that versus just getting a cobra engine

holy crap, i just noticed ur sig, why is ur dyno so low for ur mach 1? i know a MD is low but wow, shouldnt u be in the low 300's?

 

[Crzyhrse]

thanks, thats def a good thing to know itll be a little trickier getting one of those blocks up to performance par with the actual cobra blocks huh? lol itll be just as expensive to do that versus just getting a cobra engine

holy crap, i just noticed ur sig, why is ur dyno so low for ur mach 1? i know a MD is low but wow, shouldnt u be in the low 300's?

I've been wanting to take it to some kind of Dyno Day when a Dynojet is being used, but their has'nt been any for a Dynojet in a long time. I'm just curious what the difference in numbers would be. I'm satisfied with the Mustang Dyno numbers. I think on a Dynojet I'd be around 295 HP at the rears, which would almost fall into line with a guy I know with a Mach with pretty much the same mods he's gotten 300 HP and 324 TQ on a Dynojet. I've seen some threads around here with guys who Mustang Dyno their GT's and almost cry at the numbers the Mustang Dyno spits out. About 60 HP less than my numbers.

 

[DropTopPony]

thanks, thats def a good thing to know itll be a little trickier getting one of those blocks up to performance par with the actual cobra blocks huh? lol itll be just as expensive to do that versus just getting a cobra engine

Are you talking about the "Block" or "Shortblock"(crank/pistons/rods) I'm confused by your posts...If your just getting a bare block then the 03 cobra block will be cheaper since its not aluminum like a Mach block. If your talking shortblock then the 03 Cobra will be more since it has all forged internals. The Mach shortblock has the crappy pistons/rods but if it was a 5 speed Mach will have a forged crank also, automatics will have the cast crank like a gt.

The Mach 1 block is also alot lighter @ 75lbs i think but will not handle as much power as a iron block.

 

[RedDaemon]

oh yea, im not saying its BAD im just sayin that its strange that its SO low. i guess you could average the two once u get ur dynojet results that i think would be a pretty accurate read no?

 

[Crzyhrse]

I really don't have much for mods. A stock 5 speed Mach on a Dynojet at the LOWEST dynos 275 HP. With my Predator and C@L combined, I gained 16 HP. That would put me at 291 on a Dynojet. Not sure what I gained with my Catback and X-pipe, but say I gained just 9 HP, I'm at 300. Wollah. The 300 threshold. Very normal numbers. Every dyno is different, and then you'll have the inevidable, "Numbers don't mean crap, take it to the track" comments. I just took it to a shop I know that afew other Mustang friends recommended, so I had my Mach tuned and Dynoed there twice.

 

[RedDaemon]

Are you talking about the "Block" or "Shortblock"(crank/pistons/rods) I'm confused by your posts...If your just getting a bare block then the 03 cobra block will be cheaper since its not aluminum like a Mach block. If your talking shortblock then the 03 Cobra will be more since it has all forged internals. The Mach shortblock has the crappy pistons/rods but if it was a 5 speed Mach will have a forged crank also, automatics will have the cast crank like a gt.

The Mach 1 block is also alot lighter @ 75lbs i think but will not handle as much power as a iron block.

hey sry man didnt see ur post

yea, im only talkin about the blocks themselves, no shortblock or anything whatsoever on them/in them

i forgot that the mach blocks were aluminum so they would in nature be more expensive, tho lighter, wouldnt hold as much power, but where does that limit lie? 400rwhp? 800?

 

[RedDaemon]

I really don't have much for mods. A stock 5 speed Mach on a Dynojet at the LOWEST dynos 275 HP. With my Predator and C@L combined, I gained 16 HP. That would put me at 291 on a Dynojet. Not sure what I gained with my Catback and X-pipe, but say I gained just 9 HP, I'm at 300. Wollah. The 300 threshold. Very normal numbers. Every dyno is different, and then you'll have the inevidable, "Numbers don't mean crap, take it to the track" comments. I just took it to a shop I know that afew other Mustang friends recommended, so I had my Mach tuned and Dynoed there twice.

i always thought those engines were more powerful than that, somewhere around 305 hp, now that i think about it, itd make sense if that were the case being 305 chp, which would give u that number u have with a few boltons, i think that clears everything up

 

[Crzyhrse]

Even with the so-so internals of the Mach, they can support 600 HP, but that's at the extreme. I believe MMFF threw a Procharger on a bone stock Mach and it made 600 HP. They track tested it afew times before it exploded the engine. I think they got it into the low 11's before destruction.

 

[RedDaemon]

damn, thats still impressive

 

[tomustang]

damn, thats still impressive

not really, same powder rods

 

[RedDaemon]

not really, same powder rods

just shoot my dreams down like that

u do have a point...but out of an aluminum block?

600hp is pretty fast dont you think? (its fast enough for me...until i have it )

 

[tomustang]

true...but out of an aluminum block?

600hp is pretty fast dont you think? (its fast enough for me...until i have it )

doesnt matter, you are limited by power on ALL parts in the block, the rods sucks, the pistons suck, the block and crank doesn't make up for the weak internals

 

[RedDaemon]

who said anything about keepin the internals stock

 

[RedDaemon]

in all seriousness tho

the reason why i inquired is because if i ever came across a mach 1 engine for a good deal, i wanted to know how responsive it is (like the cobra engine is) to mods, in theory if you were to put the same parts on a mach 1 engine that are on an 03 cobra, would it net you the same numbers / what limit does this block have?

if its 600hp then i think thats good enough for me


sorry if i confused u or anyone else tomustang

 

[RedGTvert]

If your talking about the raw block, it will withstand quite a bit more than 600hp. Now if you want an Aluminum block that can really withstand some power, look for a 96-98 Teksid block, there are guys running 1400rwhp on them.

 

[RedDaemon]

If your talking about the raw block, it will withstand quite a bit more than 600hp. Now if you want an Aluminum block that can really withstand some power, look for a 96-98 Teksid block, there are guys running 1400rwhp on them.

yeah theyre awesome but theyre expensive, 600-700rwhp is all ill really ever need since anything more is pushing whats streetable and what isnt