Motor

[bocat187]

does anybody know if our motor has the same pistons, rods, and cams as the 03 04 cobra or there is a little difference

[Blackened300a]

The pistons are low compression in the 03-04 Cobra due to the supercharger. Im not sure about the rods and cams.

[tjl006]

Cobra rods are forged, heads are exactly the same I belive.

[DOOM]

Our motors are basically MACH-1's

[bocat187]

thank for the info

[bocat187]

so what the difference

[SC Cheesehead]

so what the difference

See post #2 and post #3

Also, Cobra = cast iron block, Mach 1/Marauder = aluminum block.

[bocat187]

which block is better

[RR|Suki]

which block is better

In theory the Iron should take more power, unless you are planning to make more than 1000whp I doubt you'll need to worry about it

[SC Cheesehead]

In theory the Iron should take more power, unless you are planning to make more than 1000whp I doubt you'll need to worry about it

+1

Everything I've heard is that the rods and pistons are the weak links.

[bocat187]

+1

Everything I've heard is that the rods and pistons are the weak links.
do u mean n our car or the cobra

[SC Cheesehead]

do u mean n our car or the cobra


Our cars.

That's why the Cobra has forged rods and pistons.

Even at that, stock internals on the aluminum block motors will handle upwards of 500 hp without problems. All in the tune.

[bocat187]

thinks for the info

[bocat187]

are the cams the same or they different too

[RR|Suki]

are the cams the same or they different too

Some people claim that the intake or exhaust cams are different. The info I was given by a builder was that all the 03/04 cars (Cobra/Mach/Marauder) have the same cams. Not sure if anyone has actually checked the part numbers on the cams.

[SC Cheesehead]

What exactly are you planning to do? If you're looking to swap out stock Marauder parts for stock Cobra parts, save yourself the time and effort.

Spend your money on getting a good performance tune from one of the site vendors, a CAI, underdrive pulleys, and 4.10 gears will give you some noticable improvement over stock.

[RR|Suki]

What exactly are you planning to do? If you're looking to swap out stock Marauder parts for stock Cobra parts, save yourself the time and effort.

Spend your money on getting a good performance tune from one of the site vendors, a CAI, underdrive pulleys, and 4.10 gears will give you some noticable improvement over stock.

+1, you if are NA do NOT put cobra pistons in your car, they are low compression, and don't even bother messing with the cams, lots of heartbreak with that one.

[ImpalaSlayer]

+1, you if are NA do NOT put cobra pistons in your car, they are low compression, and don't even bother messing with the cams, lots of heartbreak with that one.
"my car feels like it makes less power with the cobra pistons i just put in it"


i can see it now :lol:

[MrBluGruv]

Personally I'd rather try to do a very high compression N/A setup, something feels better to me about the high-comp raw power N/A motor when I think of muscle cars and especially classic muscle cars. But then again I do love the sound of a positive-displacement blower...

I think I need two Marauders. :(


And Bocat, man, I can definately appreciate the thirst for knowledge about the car, I know I've asked my fair share of questions over the almost two years I've been a member here, but we gotta get you better acquainted with the search engine here and searching the internet in general, I've seen you post a fair number of questions on here that are fairly easy to find answers for elsewhere, I mean even the question you asked in this thread has an answer (albeit maybe not definitive) in the Wikipedia on the Marauder.

[SC Cheesehead]

"my car feels like it makes less power with the cobra pistons i just put in it"


i can see it now :lol:

Yeah, but you can compensate for that by bumping up the timing...;) ---->

[ImpalaSlayer]

Personally I'd rather try to do a very high compression N/A setup, something feels better to me about the high-comp raw power N/A motor when I think of muscle cars and especially classic muscle cars. But then again I do love the sound of a positive-displacement blower...

I think I need two Marauders. :(




going fast N/a is certainly cool, but pretty difficult with the tiny ass mod motors. even the biggest 4.6 based engine (324 cid) is tiny. that was like the smallest they came back in the day nor did they have all the emission crap to deal with.

[RR|Suki]

Personally I'd rather try to do a very high compression N/A setup, something feels better to me about the high-comp raw power N/A motor when I think of muscle cars and especially classic muscle cars. But then again I do love the sound of a positive-displacement blower...



When you think of Classic Muscle cars you think of high compression motors? Which car makes you think of that?

[SC Cheesehead]

When you think of Classic Muscle cars you think of high compression motors? Which car makes you think of that?

Well for one, I think of the FE Ford engines of the mid-60's. The 406 - 428 cid engines were spec'd between 10.5:1 and 14:1, depending on the package.

[Blackened300a]

"my car feels like it makes less power with the cobra pistons i just put in it"


i can see it now :lol:

Yeah but he can make up for the loss of power by installing cobra manifolds. :rolleyes:

[RR|Suki]

Well for one, I think of the FE Ford engines of the mid-60's. The 406 - 428 cid engines were spec'd between 10.5:1 and 14:1, depending on the package.

Didn't realize they typically put anything higher than a 10.6 in stuff from factory

[SC Cheesehead]

Didn't realize they typically put anything higher than a 10.6 in stuff from factory

Agreed. Then again, these weren't your typical grocery-getter engines, either. ;)

http://www.mercurystuff.com/fe-engine-specs.html

[swordfish]

Didn't realize they typically put anything higher than a 10.6 in stuff from factory

My 70 1/2 Falcon 351 came factory with 11:1. I've heard some of the big block cars where higher.

[ctrlraven]

I heard sand blasting the inside of the engine while its running can add about 25rwhp, only takes a few mins. Works even faster if you make a water/sand solution together then dump 5 cups of it in the throttle body and take the car to red line asap.

:lol:

[LeoVampire]

[quote=MrBluGruv;902212]Personally I'd rather try to do a very high compression N/A setup, something feels better to me about the high-comp raw power N/A motor when I think of muscle cars and especially classic muscle cars. But then again I do love the sound of a positive-displacement blower...

This is what we did in the old days never needed a blower. High compression and some serious cams and all the fuel the engine could suck up. Ran the fuel line's inside of an ice bucket with dry ice for better atomization mixture with the air and made our own intakes.

19819

19820

[SC Cheesehead]

[quote=MrBluGruv;902212]Personally I'd rather try to do a very high compression N/A setup, something feels better to me about the high-comp raw power N/A motor when I think of muscle cars and especially classic muscle cars. But then again I do love the sound of a positive-displacement blower...

This is what we did in the old days never needed a blower. High compression and some serious cams and all the fuel the engine could suck up. Ran the fuel line's inside of an ice bucket with dry ice for better atomization mixture with the air and made our own intakes.

19819

19820

Neat pics, but a bit fuzzy. What are those carbs, Carter AFBs?

[LeoVampire]

[quote=LeoVampire;902263]

Neat pics, but a bit fuzzy. What are those carbs, Carter AFBs?

Those pics are from a LOT OF YEARS AGO that is why they are fuzzy cameras were a bit iffy back then! I think I used a Kodak instamatic camera back then.

Those are old Holly dominators to answer your question.

BTW we had so much compression in that engine and a cam shaft with such a high lift and duration that we could not get this motor to idle under 1,700 RPM's and it still
looked like you could make out each movment of the fiberglass fan blade.

[MrBluGruv]

This is what we did in the old days never needed a blower. High compression and some serious cams and all the fuel the engine could suck up. Ran the fuel line's inside of an ice bucket with dry ice for better atomization mixture with the air and made our own intakes.




I firmly believe I was born in the wrong era...

[SC Cheesehead]

I firmly believe I was born in the wrong era...

Take it from one who was there; you were! ;) ------> :D

[LeoVampire]

I firmly believe I was born in the wrong era...

Unfortunatly you did miss a lot. Leaded fuel with high octain was a big loss.

I miss running the headers of my dump truck into the stacks without mufflers can't do that stuff any more.

Or just swap out the tires on the Mustang between the drag track and the street tires and no one said a word.

[SC Cheesehead]

Unfortunatly you did miss a lot. Leaded fuel with high octain was a big loss.

I miss running the headers of my dump truck into the stacks without mufflers can't do that stuff any more.

Or just swap out the tires on the Mustang between the drag track and the street tires and no one said a word.

Ahhhh, Leo, I'm getting all melancholy just thinking about that stuff...:(

[LeoVampire]

Ahhhh, Leo, I'm getting all melancholy just thinking about that stuff...:(

Ya but right now we have some serious advantages. Can combine that old school knowledge with some of the new tech that is out there.

I have to admit I do find some of the new stuff fun to work with and a lot less time consuming.

That car was a pain in the ass because of the rush to get it ready for the track on time. Bolted all the sheet metal on went to start it and it just did not want to run right @ higher RPM's. Come to find out we installed too small a fuel line from the rear of the car on up had to take it all apart and do it again lot's of swearing went around that day.

Trying to set up the engines in the old days took some serious listening ability and have to watch how it is all changing the effect. No machines to say yes or no.

And you ended up with hearing problems for several hours after words :lol:

[SC Cheesehead]

Ya but right now we have some serious advantages. Can combine that old school knowledge with some of the new tech that is out there.

I have to admit I do find some of the new stuff fun to work with and a lot less time consuming.

That car was a pain in the ass because of the rush to get it ready for the track on time. Bolted all the sheet metal on went to start it and it just did not want to run right @ higher RPM's. Come to find out we installed too small a fuel line from the rear of the car on up had to take it all apart and do it again lot's of swearing went around that day.

Trying to set up the engines in the old days took some serious listening ability and have to watch how it is all changing the effect. No machines to say yes or no.

And you ended up with hearing problems for several hours after words :lol:

That was the fun part! Just ask most younger gearheads about setting point gap, and not only will they look at you funny, like "what are ponts?" but when you tell them you could get in the ballpark by using business card to set 'em they think you're nuts. ;)

[LeoVampire]

That was the fun part! Just ask most younger gearheads about setting point gap, and not only will they look at you funny, like "what are ponts?" but when you tell them you could get in the ballpark by using business card to set 'em they think you're nuts. ;)


Or a match book cover :D

[SC Cheesehead]

Or a match book cover :D


You betcha! :D