New engine, Trans, Rearend...

davidsirmons07 · September 2nd, 2007, 03:39 PM

I FINALLY got a great paying job, and will be doing ALL THE THINGS I've always wanted to do with my '02 GT Mustang. But I need guidance from people's experiences.

First, I'd LIKE to get a 5.4 dohc ( bore stroke it to 350 or so), get perf parts for it, and twin turbos, but I have no idea if the extra cost for a 5.4 is worth it, over a 4.6 03 cobra engine. I'd like the extra cubes and torque of a stroker, but the extra 1.5 grand it will cost over a 4.6 cobra might be better spent elsewhere. Thoughts? Also, a streetable intake manifold is needed. I've been looking, but would appreciate input on what people have experienced with their own purchases and setups. Additionally, anyone have thoughts on Ferrea titanium valves for street? I'm wanting to rev pretty high ( 7k or 7300) and want to never worry about valve float WITHOUT resorting to super high pressure springs.

Second, if a 03 cobra 4.6 is chosen, what would I need to get it working in an '02 GT? Very important...Do I need a different wiring harness? Different ancillaries (water pump/oil pump/alternator, etc.) or can I swap most of the goodies of my 02 gt over? Just wondering.

Third, a Viper spec T56 will be ordered after the engine. Anyone have suggestions about flywheel/clutch packages? I'd like to have a lighter than normal flywheel/clutch. Carbon/Carbon clutches, perhaps?

Fourth, rear end. A 9" Mark Williams, most likely, all the way, with 373, or maybe 350 gears. The worst part is trying to find good looking rims that can hold the wide tires I want. 315 are fine, but I'd like to have 335 or even wider, so tubs would be required at that point.

If ANYONE can give insights about these things, especially the engine/transmission aspects, please do!

Thanks for your time and help!

WAR-PARTY · September 5th, 2007, 03:35 PM

are you doing the work? still about 20K to be rolling

pHANTUz · September 6th, 2007, 06:42 AM

first things first.. what job did you get so people who want a good paying job can do these things

SWEET2KSTANG · September 6th, 2007, 02:36 PM

what are you plans for the car and what kind of power do you want to make?

dmachine22 · September 6th, 2007, 03:45 PM

03-04 cobra engine there is a pretty good start!

davidsirmons07 · September 8th, 2007, 01:19 AM

Heheheh...I make games...I'm a digital artist for games. Design, modeling, texturing, animation etc. Working for a company called Artificial Studios in Florida, they made a game called Monster Madness, and one other one. I'll be doing work on their next title...

1stimeford · September 8th, 2007, 08:35 AM

cool job and welcome to the site

WAR-PARTY · September 8th, 2007, 12:04 PM

Well with that kind of cheeze coming in here is what I tell new builders. Me I've been at for about 25 years.
Plan your build and build your plan, it saves time and money and you know on the front end what your going to get for your money. It also allows you to serch out the right price and do the reserch on the parts you want to use. Me I'm going for 9s with a Blown 4.6, I had the motor built to support the blower and cams....
Good luck man!

davidsirmons07 · September 11th, 2007, 01:47 AM

Yeah, that sounds like sensible advice.

I'd like to knock off as much weight as possible from my mustang, and get as solid and reliable an engine as possible. So, if you guys know of lightweight parts other than carbon fiber hoods/trunk, tubular k members, and forged rims, please share. Would anyone suggest titanium valves for this street engine? Or just perhaps the hollow-stem, sodium filled valves? I want to eliminate valve float possibility outright, but allow 7k rpm WITHOUT resorting to high pressure springs.

September 2nd, 2007, 03:39 PM	#1
davidsirmons07 Newbie Join Date: Sep 2007 Posts: 7	New engine, Trans, Rearend... I FINALLY got a great paying job, and will be doing ALL THE THINGS I've always wanted to do with my '02 GT Mustang. But I need guidance from people's experiences. First, I'd LIKE to get a 5.4 dohc ( bore stroke it to 350 or so), get perf parts for it, and twin turbos, but I have no idea if the extra cost for a 5.4 is worth it, over a 4.6 03 cobra engine. I'd like the extra cubes and torque of a stroker, but the extra 1.5 grand it will cost over a 4.6 cobra might be better spent elsewhere. Thoughts? Also, a streetable intake manifold is needed. I've been looking, but would appreciate input on what people have experienced with their own purchases and setups. Additionally, anyone have thoughts on Ferrea titanium valves for street? I'm wanting to rev pretty high ( 7k or 7300) and want to never worry about valve float WITHOUT resorting to super high pressure springs. Second, if a 03 cobra 4.6 is chosen, what would I need to get it working in an '02 GT? Very important...Do I need a different wiring harness? Different ancillaries (water pump/oil pump/alternator, etc.) or can I swap most of the goodies of my 02 gt over? Just wondering. Third, a Viper spec T56 will be ordered after the engine. Anyone have suggestions about flywheel/clutch packages? I'd like to have a lighter than normal flywheel/clutch. Carbon/Carbon clutches, perhaps? Fourth, rear end. A 9" Mark Williams, most likely, all the way, with 373, or maybe 350 gears. The worst part is trying to find good looking rims that can hold the wide tires I want. 315 are fine, but I'd like to have 335 or even wider, so tubs would be required at that point. If ANYONE can give insights about these things, especially the engine/transmission aspects, please do! Thanks for your time and help!

September 5th, 2007, 03:35 PM	#2
WAR-PARTY Hardcore Enthusiast 2001 YUGO GT Join Date: Aug 2006 Location: GOAT LOCKER PENSACOLA FL Posts: 1,068	are you doing the work? still about 20K to be rolling __________________ Military Crew Golden Shellback U.S. Navy ret. Been around the world 17 times, seen everything from a Cat fornicating contest to an elephant jack off. When Jesus has a question God tells him 'Go ask the Chief.'

September 6th, 2007, 02:36 PM	#4
SWEET2KSTANG MM Fanatic 2000 mustang gt 12.01@114.69 Join Date: Oct 2006 Location: N.W. AR Posts: 4,362	what are you plans for the car and what kind of power do you want to make? __________________ stock long block, bolt ons, slicks, and a little squeeze 1/4 E.T. 12.06@114.69 Only two defining forces have ever offered to die for you: 1. Jesus Christ 2. The American G. I. One died for your soul, the other for your freedom.

September 6th, 2007, 03:45 PM	#5
dmachine22 Hardcore Enthusiast 1999 Mustang GT Join Date: Jan 2007 Location: Columbus, Ohio Posts: 1,161	03-04 cobra engine there is a pretty good start! __________________ "Sold"

September 8th, 2007, 08:35 AM	#7
1stimeford Regular Join Date: Feb 2007 Location: Virginia Beach, Va Posts: 319	cool job and welcome to the site __________________ Never argue with a fool, or someone may come along & not know who the fool is. ________________ JLT CAI, Accufab 70MM Throttlebody and Plenum,Xcal 2/BamaChips Tune

September 6th, 2007, 06:42 AM	#3
pHANTUz Regular Join Date: May 2007 Location: Camden, South Carolina Posts: 88	first things first.. what job did you get so people who want a good paying job can do these things

September 8th, 2007, 01:19 AM	#6
davidsirmons07 Newbie Join Date: Sep 2007 Posts: 7	Heheheh...I make games...I'm a digital artist for games. Design, modeling, texturing, animation etc. Working for a company called Artificial Studios in Florida, they made a game called Monster Madness, and one other one. I'll be doing work on their next title...

September 8th, 2007, 12:04 PM	#8
WAR-PARTY Hardcore Enthusiast 2001 YUGO GT Join Date: Aug 2006 Location: GOAT LOCKER PENSACOLA FL Posts: 1,068	Well with that kind of cheeze coming in here is what I tell new builders. Me I've been at for about 25 years. Plan your build and build your plan, it saves time and money and you know on the front end what your going to get for your money. It also allows you to serch out the right price and do the reserch on the parts you want to use. Me I'm going for 9s with a Blown 4.6, I had the motor built to support the blower and cams.... Good luck man! __________________ Military Crew Golden Shellback U.S. Navy ret. Been around the world 17 times, seen everything from a Cat fornicating contest to an elephant jack off. When Jesus has a question God tells him 'Go ask the Chief.'

September 11th, 2007, 01:47 AM	#9
davidsirmons07 Newbie Join Date: Sep 2007 Posts: 7	Yeah, that sounds like sensible advice. I'd like to knock off as much weight as possible from my mustang, and get as solid and reliable an engine as possible. So, if you guys know of lightweight parts other than carbon fiber hoods/trunk, tubular k members, and forged rims, please share. Would anyone suggest titanium valves for this street engine? Or just perhaps the hollow-stem, sodium filled valves? I want to eliminate valve float possibility outright, but allow 7k rpm WITHOUT resorting to high pressure springs.

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