4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

ENGINE!?!?!?!?

Thread Tools
 
Search this Thread
 
Old Jun 23, 2009 | 01:08 AM
  #1  
c_espitia's Avatar
c_espitia
Thread Starter
2nd Gear Member
 
Joined: May 2007
Posts: 213
From:
Default ENGINE!?!?!?!?

I want to swap out my engine with a teksid? but im not sure where to find one. would my engine hold if I changed the internals? I had a friend tell me that my block wouldnt hold the 400 RWHP that I wanted if i changed internals? Give me some opinions I want to build up the teksid 4v engine. what kind of crank pistons cams heads etc... should I use and how much RWHP should I have after I get done with it but remember I want to supercharge it later on! Thanks
Old Jun 23, 2009 | 01:25 AM
  #2  
jvog's Avatar
jvog
5th Gear Member
 
Joined: Mar 2008
Posts: 2,825
From: PA
Default

Originally Posted by c_espitia
I want to swap out my engine with a teksid? but im not sure where to find one. would my engine hold if I changed the internals? I had a friend tell me that my block wouldnt hold the 400 RWHP that I wanted if i changed internals? Give me some opinions I want to build up the teksid 4v engine. what kind of crank pistons cams heads etc... should I use and how much RWHP should I have after I get done with it but remember I want to supercharge it later on! Thanks
Where to start...You're friend is an idiot. Stock cast iron blocks can hold more than you are ever going to throw at it. If you want to do a 4v swap using a teksid, I would see if you could just find a beat 4v out of a 96-96 cobra and rebuild it using forged internals. As long as the crank is good, it can be turned/polished and reused since it is already forged. I would just get those 4v heads polished and stick with those. As for cams, look into CMS.
Old Jun 23, 2009 | 05:09 AM
  #3  
Smokin04's Avatar
Smokin04
2nd Gear Member
 
Joined: Apr 2009
Posts: 314
From: Near China now...
Default

It would help to know what car you have now. A Teksid block can handle 2000+ HP. A factory 03/04 Cobra block can handle 1000+. Im there now on the stock motor and internals. Call Livernois or MMR and buy a good rotating assembly after finding the block of your choice...ship it to a good builder and voila...a 4 digit capable bottom end. Even a factory 2 valve can handle 500 rwhp. Seen it...several times. My neighbor in fact has a stock 2V bottom end on an 03 with a KB. We got 505 rwtq with it and it's still ticking. DD as well.
Old Jun 23, 2009 | 05:37 AM
  #4  
c_espitia's Avatar
c_espitia
Thread Starter
2nd Gear Member
 
Joined: May 2007
Posts: 213
From:
Default

yeah I have a 2002 GT 5-speed I really dont want a crazy amount of power I just want my car to be bad *** ya know. LOL but if I could save money and do something to my stock motor to get around 500RWHP how would I do it besides a supercharger?
Old Jun 23, 2009 | 07:50 AM
  #5  
dennis_112's Avatar
dennis_112
3rd Gear Member
 
Joined: Feb 2007
Posts: 897
From: Jackson, Oh
Default

Originally Posted by c_espitia
yeah I have a 2002 GT 5-speed I really dont want a crazy amount of power I just want my car to be bad *** ya know. LOL but if I could save money and do something to my stock motor to get around 500RWHP how would I do it besides a supercharger?
Besides a supercharger? You are going to need a power adder to make that kind of power, so you have two other options. A turbo, or nitrous. But a supercharger is going to be the most cost effective way. Nitrous will be cheaper at first then re-filling the bottle's will add up. And with a turbo the up front cost is high. They all have there ups and downs. Going through this before this is my advice. Forge the motor now, build it for what you want later. I would love to have waited to put the supercharger on a killer forged motor instead of on a stock motor. But either way you will be happy.
Old Jun 23, 2009 | 08:58 AM
  #6  
mustangman281's Avatar
mustangman281
Banned
 
Joined: Sep 2008
Posts: 0
From: tn
Default

A teksid block can only handle around 1400hp but the Iron GT/03-04 cobra block can handle over 2000hp. The iron blocks in these cars are very strong just the internals suck.
Old Jun 23, 2009 | 11:40 AM
  #7  
Fobra's Avatar
Fobra
Banned
 
Joined: May 2007
Posts: 4,064
From:
Default

+1 speaks the truth... just as an add on, I wouldn't run a teksid for crazy power (1000+), and would only run it on a track car, which you seriously race... then the weight saving might be meaningful.
Old Jun 23, 2009 | 05:56 PM
  #8  
Smokin04's Avatar
Smokin04
2nd Gear Member
 
Joined: Apr 2009
Posts: 314
From: Near China now...
Default

You're close...

J. Mihovetz runs a Teksid based modular at 2000 HP (that was 2 years ago). SHM race block will also handle that kind of power. SHM supplied a 5.4 race block for him now with Darton sleeves, rated to around 3000 HP. MMR also makes a bad *** modular block that comes with 351 cubes with a stock 5.4 crank throw. Put in a stroker crank and you can have a 370 cubic inch mod motor monster.

The iron 04 cobra block has been showing problems with cylinder wall ballooning at 25+ psi. causing ring seal, excessive blow-by and power loss issues. There is no way the Cobra iron block will handle 2K power. It's just not possible. You also said Iron GT/03-04 cobra block ...kind of confused in which one you're talking about as these are different blocks. A mustang GT block 2V is good for around 550-600 if reinforced (studded), same with the 3V's. If you're refferring to the Ford GT (supercar), that has an aluminum 5.4 block. That has been shown to hold around 1500 rwhp. Joe Cermin's GTTT ran the stock block to that level.

Last edited by Smokin04; Jun 23, 2009 at 06:05 PM.
Old Jun 23, 2009 | 06:01 PM
  #9  
Smokin04's Avatar
Smokin04
2nd Gear Member
 
Joined: Apr 2009
Posts: 314
From: Near China now...
Default

And to the OP, 500 with a 2V isn't impossible, just very difficult. And to do it without a blower or turbo's (boost) is even harder. You will need N20 (a lot), ported heads, cams, a bullitt or trick flow intake, a little more compression (wouldn't hurt) and a serious tune.

My advice would be to just buy a blower, and leave the factory bottom end. Keep your power at around 380 rwhp (about 450 FW) and your engine will live a long happy life.
Old Jun 23, 2009 | 09:04 PM
  #10  
mustangman281's Avatar
mustangman281
Banned
 
Joined: Sep 2008
Posts: 0
From: tn
Default

Get your pen and paper out son because you are about to get schooled.

J. Mihovetz car was a 1600hp TT cougar using a Teksid block that was race prepped (filled). SHM uses the production Teksid blocks for their 1000hp shortblocks. For their 1600hp they use a race prepped Teksid. Race prepped blocks are not streetable blocks.

The 01.5-04 Mustang GT block is the exact same romeo casting as the 03-04 cobra blocks. The only difference is the cobra blocks were machined for 4 bolt mains. The 96-98 GT blocks are are close to the 01.5-04 except they have a bit more webbing which needs to be trimmed to install a cobra crank.

You saying the 2v blocks are only good to 550-600 if reinforced just goes to show your ignorance. I for one am making much more that that using a 2v block along with thousands of guys like me.

The 3v block is the strongest production aluminum block ford ever produced and will handle 1400hp.

The 99-01 aluminum blocks used in the cobras and machs were crap and only handle 900hp

Seriously get your head out of hylands book because it is complete garbage full of mis information.



All times are GMT -5. The time now is 08:07 AM.