difference between thunderbird 4.6 and mustang 4.6???

94pacecarSVT · September 20th, 2009, 04:06 AM

So my car is fixed and im going to alabama in a few weeks to pick it up. my uncle put a 4.6 out of a thunderbird in it. what is the difference between those motors and the 4.6 motors that came in the mustangs? i read online that the tbirds only had like 205hp!?!? but the car has all my bolt ons that were on it before. whats the difference?

SWEET2KSTANG · September 20th, 2009, 08:26 AM

what year t-bird. the older ones were npi and that is why they are rated at 205. the difference between the mustang and full size car npi's were just in the tune i believe.

carnut59 · September 20th, 2009, 02:02 PM

all of them with the 4.6 were npi. the 94-95 had a different intake it. other than that maybe the tune.

94pacecarSVT · September 20th, 2009, 02:28 PM

so with my pi intake and all my bolt ons and a factory tune you think itll be alright?

carnut59 · September 20th, 2009, 02:44 PM

should be, it maybe down on power alittle. did he use your heads or the ones on the tbird block?

Boostang · September 20th, 2009, 03:10 PM

you need to put the heads on there also.. what part of alabama you coming to?

SWEET2KSTANG · September 20th, 2009, 10:28 PM

if you had a pi motor in there, and went with an earlier motor, then you have a npi based long block. your tune is going to be all messed up and will need retune. this is unless i am missing something.

Boostang · September 20th, 2009, 10:31 PM

did the thunder birds come pi?

94pacecarSVT · September 20th, 2009, 10:38 PM

the only stuff he took off of my motor were the intake, my ignition, and all my bolt ons. the heads and cams were from the tbird. i am going to be doing a lot of work to the car when i get it back so i will probably put some pi heads on it and cams like i had in it before. im going to gadsden, al. and i need some parts if anyone can help me out. i need a factory radiator or a direct fit aluminum, a fan, a/c condenser, degas bottle, all three coolant hoses, and a radiator core support. and does anyone know how difficult it is to replace the core support?

SWEET2KSTANG · September 20th, 2009, 11:48 PM

you know what year the t-bird was?

94pacecarSVT · September 20th, 2009, 11:53 PM

no but i know it only had 40,000 miles on it.

SWEET2KSTANG · September 20th, 2009, 11:59 PM

look at the head castings and see if they are pi or not. if its a npi motor and you do a pi swap, you compression is going to go up. not 100% smart to run that 11psi on regular pump gas on stock bottom end.

carnut59 · September 21st, 2009, 12:29 AM

no none of them came pi.

94pacecarSVT · September 21st, 2009, 12:34 AM

i dont have the blower anymore. i'm just worried that this thing is gonna be a turd. i'm gonna have to do a complete radiator/fan/a/c replacement once i get it back so i'm really hopin that im not gonna have any problems from the motor. eventually im gonna put a nice motor together for it but for now i just want it to run good. btw does anyone know how hard it is to reroute the a/c lines back to stock. the people at websters radiator/a/c decided the blower was in the way and rerouted my a/c lines....and how hard is it to replace a radiator core support??

carnut59 · September 21st, 2009, 12:35 AM

unless you can wield, take it to a bodyshop

94pacecarSVT · September 21st, 2009, 12:50 AM

my neighbor runs a professional welding business

carnut59 · September 21st, 2009, 01:45 AM

just drill out the spot welds, pull it out, and weld in the new one.

94pacecarSVT · September 21st, 2009, 02:01 AM

and as far as the a/c lines are concerned, how hard of a job is that?? its mainly just the ones at the front of the passengers side of the engine bay.

SWEET2KSTANG · September 21st, 2009, 03:08 AM

Originally Posted by carnut59

no none of them came pi.

i thought the 02+ t-birds came with v8's, i looked and saw they didnt. my bad.

Originally Posted by 94pacecarSVT

and as far as the a/c lines are concerned, how hard of a job is that?? its mainly just the ones at the front of the passengers side of the engine bay.

shouldnt be too bad. just be sure to be carefull with any hard line if any.

94pacecarSVT · September 21st, 2009, 04:44 PM

do you know of anywhere that i can get new a/c lines for it?

September 20th, 2009, 04:06 AM	#1
94pacecarSVT Enthusiast 1996 Mustang GT 11.2@122.36 Join Date: Aug 2006 Location: North Carolina Posts: 656 iTrader: 1 reviews	difference between thunderbird 4.6 and mustang 4.6??? So my car is fixed and im going to alabama in a few weeks to pick it up. my uncle put a 4.6 out of a thunderbird in it. what is the difference between those motors and the 4.6 motors that came in the mustangs? i read online that the tbirds only had like 205hp!?!? but the car has all my bolt ons that were on it before. whats the difference? __________________ black 96 gt w/ non pi motor, cai, built t45, built rear end w/ 3.73's, completely modded suspension, race radiator.....startin over. www.rk-collection.com

September 20th, 2009, 08:26 AM	#2
SWEET2KSTANG mm's nitrous mod 2000 mustang gt 11.79@115.83 (old set up) Join Date: Oct 2006 Location: N.W. AR Posts: 12,430 iTrader: 8 reviews	what year t-bird. the older ones were npi and that is why they are rated at 205. the difference between the mustang and full size car npi's were just in the tune i believe. __________________ project warhorse under construction being built by MP2 Performance

September 20th, 2009, 02:28 PM	#4
94pacecarSVT Enthusiast 1996 Mustang GT 11.2@122.36 Join Date: Aug 2006 Location: North Carolina Posts: 656 iTrader: 1 reviews	so with my pi intake and all my bolt ons and a factory tune you think itll be alright? __________________ black 96 gt w/ non pi motor, cai, built t45, built rear end w/ 3.73's, completely modded suspension, race radiator.....startin over. www.rk-collection.com

September 20th, 2009, 02:44 PM	#5
carnut59 Enthusiast 2001 gt Join Date: Sep 2007 Location: dallas, tx Posts: 772 iTrader: 0 reviews	should be, it maybe down on power alittle. did he use your heads or the ones on the tbird block? Last edited by carnut59; September 20th, 2009 at 02:49 PM.

September 20th, 2009, 10:28 PM	#7
SWEET2KSTANG mm's nitrous mod 2000 mustang gt 11.79@115.83 (old set up) Join Date: Oct 2006 Location: N.W. AR Posts: 12,430 iTrader: 8 reviews	if you had a pi motor in there, and went with an earlier motor, then you have a npi based long block. your tune is going to be all messed up and will need retune. this is unless i am missing something. __________________ project warhorse under construction being built by MP2 Performance

September 20th, 2009, 02:02 PM	#3
carnut59 Enthusiast 2001 gt Join Date: Sep 2007 Location: dallas, tx Posts: 772 iTrader: 0 reviews	all of them with the 4.6 were npi. the 94-95 had a different intake it. other than that maybe the tune.

September 20th, 2009, 03:10 PM	#6
Boostang Hardcore Enthusiast 1997 Mustang GT 11.01@128.32 Join Date: Jan 2009 Location: Seale, Alabama Posts: 1,748 iTrader: 0 reviews	you need to put the heads on there also.. what part of alabama you coming to?

September 20th, 2009, 10:31 PM	#8
Boostang Hardcore Enthusiast 1997 Mustang GT 11.01@128.32 Join Date: Jan 2009 Location: Seale, Alabama Posts: 1,748 iTrader: 0 reviews	did the thunder birds come pi?

September 20th, 2009, 10:38 PM	#9
94pacecarSVT Enthusiast 1996 Mustang GT 11.2@122.36 Join Date: Aug 2006 Location: North Carolina Posts: 656 iTrader: 1 reviews	the only stuff he took off of my motor were the intake, my ignition, and all my bolt ons. the heads and cams were from the tbird. i am going to be doing a lot of work to the car when i get it back so i will probably put some pi heads on it and cams like i had in it before. im going to gadsden, al. and i need some parts if anyone can help me out. i need a factory radiator or a direct fit aluminum, a fan, a/c condenser, degas bottle, all three coolant hoses, and a radiator core support. and does anyone know how difficult it is to replace the core support? __________________ black 96 gt w/ non pi motor, cai, built t45, built rear end w/ 3.73's, completely modded suspension, race radiator.....startin over. www.rk-collection.com

September 20th, 2009, 11:48 PM	#10
SWEET2KSTANG mm's nitrous mod 2000 mustang gt 11.79@115.83 (old set up) Join Date: Oct 2006 Location: N.W. AR Posts: 12,430 iTrader: 8 reviews	you know what year the t-bird was? __________________ project warhorse under construction being built by MP2 Performance

September 20th, 2009, 11:53 PM	#11
94pacecarSVT Enthusiast 1996 Mustang GT 11.2@122.36 Join Date: Aug 2006 Location: North Carolina Posts: 656 iTrader: 1 reviews	no but i know it only had 40,000 miles on it. __________________ black 96 gt w/ non pi motor, cai, built t45, built rear end w/ 3.73's, completely modded suspension, race radiator.....startin over. www.rk-collection.com

September 20th, 2009, 11:59 PM	#12
SWEET2KSTANG mm's nitrous mod 2000 mustang gt 11.79@115.83 (old set up) Join Date: Oct 2006 Location: N.W. AR Posts: 12,430 iTrader: 8 reviews	look at the head castings and see if they are pi or not. if its a npi motor and you do a pi swap, you compression is going to go up. not 100% smart to run that 11psi on regular pump gas on stock bottom end. __________________ project warhorse under construction being built by MP2 Performance

September 21st, 2009, 12:29 AM	#13
carnut59 Enthusiast 2001 gt Join Date: Sep 2007 Location: dallas, tx Posts: 772 iTrader: 0 reviews	no none of them came pi.

September 21st, 2009, 12:34 AM	#14
94pacecarSVT Enthusiast 1996 Mustang GT 11.2@122.36 Join Date: Aug 2006 Location: North Carolina Posts: 656 iTrader: 1 reviews	i dont have the blower anymore. i'm just worried that this thing is gonna be a turd. i'm gonna have to do a complete radiator/fan/a/c replacement once i get it back so i'm really hopin that im not gonna have any problems from the motor. eventually im gonna put a nice motor together for it but for now i just want it to run good. btw does anyone know how hard it is to reroute the a/c lines back to stock. the people at websters radiator/a/c decided the blower was in the way and rerouted my a/c lines....and how hard is it to replace a radiator core support?? __________________ black 96 gt w/ non pi motor, cai, built t45, built rear end w/ 3.73's, completely modded suspension, race radiator.....startin over. www.rk-collection.com

September 21st, 2009, 12:35 AM	#15
carnut59 Enthusiast 2001 gt Join Date: Sep 2007 Location: dallas, tx Posts: 772 iTrader: 0 reviews	unless you can wield, take it to a bodyshop

September 21st, 2009, 12:50 AM	#16
94pacecarSVT Enthusiast 1996 Mustang GT 11.2@122.36 Join Date: Aug 2006 Location: North Carolina Posts: 656 iTrader: 1 reviews	my neighbor runs a professional welding business __________________ black 96 gt w/ non pi motor, cai, built t45, built rear end w/ 3.73's, completely modded suspension, race radiator.....startin over. www.rk-collection.com

September 21st, 2009, 01:45 AM	#17
carnut59 Enthusiast 2001 gt Join Date: Sep 2007 Location: dallas, tx Posts: 772 iTrader: 0 reviews	just drill out the spot welds, pull it out, and weld in the new one.

September 21st, 2009, 02:01 AM	#18
94pacecarSVT Enthusiast 1996 Mustang GT 11.2@122.36 Join Date: Aug 2006 Location: North Carolina Posts: 656 iTrader: 1 reviews	and as far as the a/c lines are concerned, how hard of a job is that?? its mainly just the ones at the front of the passengers side of the engine bay. __________________ black 96 gt w/ non pi motor, cai, built t45, built rear end w/ 3.73's, completely modded suspension, race radiator.....startin over. www.rk-collection.com

September 21st, 2009, 04:44 PM	#20
94pacecarSVT Enthusiast 1996 Mustang GT 11.2@122.36 Join Date: Aug 2006 Location: North Carolina Posts: 656 iTrader: 1 reviews	do you know of anywhere that i can get new a/c lines for it? __________________ black 96 gt w/ non pi motor, cai, built t45, built rear end w/ 3.73's, completely modded suspension, race radiator.....startin over. www.rk-collection.com

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