Engine Swap 3.8 to 4.6

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red4.6

New Member

Nov 7, 2005

3

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Nov 7, 2005

#1

• Nov 7, 2005

• #1

My 3.8 95 mustang threw a rod threw the block and therefor need a new motor. V-6's are hard to come by in my area, however I have found several 4.6's. Will these fit in my 3.8, the 4.6 comes with ECU, wiring harness, motor mounts, and the motor. How much trouble is it to switch motors like that and is there any other parts that I'm going to need.

 

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cobra232

New Member

Mar 10, 2004

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Nov 8, 2005

#2

• Nov 8, 2005

• #2

red4.6 said:

My 3.8 95 mustang threw a rod threw the block and therefor need a new motor. V-6's are hard to come by in my area, however I have found several 4.6's. Will these fit in my 3.8, the 4.6 comes with ECU, wiring harness, motor mounts, and the motor. How much trouble is it to switch motors like that and is there any other parts that I'm going to need.

Click to expand...

way too much stuff to be an easy budget project.

it will cost atleast $3000 to do the conversion, and you will have to tell your insurance company about the V8 or it is insurance fraud

for alot less money you can get a good used 3.8 from www.stangparts.com and have it shipped to your door for far less (about $550-$800). click on their product inventory section for the engines. if you would want to stay single port the i suggest a 97-98 engine or splitport and 99+ engine. also you could swap in any 97+ 4.2L F-150 truck engine. it is very torquey and will make a nice improvement. the only thing you would need is a modified fuel rail and computer,MAF

you can also get a fully built 3.8 or 4.2 shortblock or longblock with forged rods/pistons and your choice of cam from www.rpm-mustangs.com

you can use your heads and intakes on a 4.2 or 3.8 splitport block so you have alot of possibilities

 

AP1995V6

Member

Jul 13, 2003

547

1

16

Oxford, MS

Nov 8, 2005

#3

• Nov 8, 2005

• #3

If I were doing an engine swap into a 95, I would personally go with a 302/351.

I'm currently building a 408 for my car. I'm taking a block I picked up from a JY to a machine shop tomorrow to have it check out and cleaned up if it isn't cracked.

It's all in how much you want to do and how much money you're willing to spend. V6 to V8 Engine swaps = $$$.

If money is an issue, I would do what cobra232 suggested, or if you just want to make power with a 6.

 

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OxMox

turkeysammichesonhisface

Mar 31, 2005

0

0

0

Palm Harbor, FL

Nov 8, 2005

#4

• Nov 8, 2005

• #4

Dohc V8 > Sohc V6


Burn!!!!!!!!! :d J/k

 

98stangv8

Active Member

Oct 3, 2003

1,036

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fayetteville, nc

Nov 8, 2005

#5

• Nov 8, 2005

• #5

don't do it...been there done that....lot more money than you think...

 

Scott_95GT

New Member

Oct 8, 2004

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Sacramento

Nov 8, 2005

#6

• Nov 8, 2005

• #6

You will need: Tons of time, lots of space, access to extremly cheap parts (like a complete parts car) more car knowlege than the average gear head, a car to drive in your spare time, tons of tools, and a lot of patience. And if you are going to pay someone, you will spend TONS more than if you would have just bought a used GT in the first place.

Much more goes into this than appears on the surface. Don't forget about that stock v6 drivetrain either.

Don't do it!

 

98stangv8

Active Member

Oct 3, 2003

1,036

0

36

fayetteville, nc

Nov 8, 2005

#7

• Nov 8, 2005

• #7

and after you get all of what he just said...you have to get the computer to make the car go! That was the hardest part of all of it...

 

tomustang

Psychotic Member

Founding Member

Jun 8, 2000

3,434

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78

McLean Hospital

Nov 8, 2005

#8

• Nov 8, 2005

• #8

98stangv8 said:

don't do it...been there done that....lot more money than you think...

Click to expand...

well you also have a built SB and heads...

 

98_stang_guy

New Member

Apr 17, 2003

121

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0

Wisconsin

Nov 9, 2005

#9

• Nov 9, 2005

• #9

a guy on 3.8mustang did the swap...

http://www.3.8mustang.com/forum/showthread.php?t=135735

 

98stangv8

Active Member

Oct 3, 2003

1,036

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36

fayetteville, nc

Nov 10, 2005

#10

• Nov 10, 2005

• #10

tomustang said:

well you also have a built SB and heads...

Click to expand...

this is my 3rd engine...going from the 6 to the 8 I used a 98 gt engine...minimal mods...

 

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kovacs22

Founding Member

Jul 7, 2002

380

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0

Milan Michigan (Ann Arbor)

Nov 28, 2005

#11

• Nov 28, 2005

• #11

i swapped, not so hard considering i did it on my own with minimal knowledge...you can do anything you want, dont listen to other people. i probly spent a little over 2 grand including mods and t45, email me at kovacs32@aol.com if you have any Q's.

Ryan