GM V6 Swap

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mgreen84

NAXJA Forum User

Location

Georgia

• Mar 18, 2009

• #1

I know I have seen it on here before but after searching several different terms I can't find it!!....

I saw a write-up/article for swapping the 2.8V6 out for a 3.1/3.4, I am working on my newest project and this little 2.(Sucks) has got to go... help is appreciated.

 

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Mullet Man

NAXJA Forum User

Location

Kirkland IL

• Mar 19, 2009

• #2

if you were gonna go thru the trouble, you might as well go small block V8, or atleast Jeep HO 4L I6.
and if you did a V6 swap, a 4.3 would be a much better choice then the 3.4 or 3.1. but still IMO, not as good a choice as a small block or 4.0.

ever thought about a homebrew turbo setup for that little V6?

just talking probably not much help lol.

 

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mgreen84

NAXJA Forum User

Location

Georgia

• Mar 19, 2009

• #3

the trouble to put a 4.0l in an 84 xj is not really worth it to me... having to modify the firewall and all..... as for the SBC, I have already had one XJ with the SBC and while I love it... the transmission and x-case in this 84 still have a 2 year unlimited mileage warranty on them, so swapping in a 3.1 or 3.4 even a 3.8 from a buick (which still have the 60* b-housing) would be better in my situation....

 

Last edited: Mar 19, 2009

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wannajeep

NAXJA Forum User

Location

Two Harbors Mn.

• Mar 19, 2009

• #4

Hmm, anyone ever do a Camaro 3.8? Great motor and about 200HP.

 

wolfpackjeeper

NAXJA Forum User

Location

500' and 500KCAS, RAF lakenheath

• Mar 19, 2009

• #5

You can easily swap the camaro 3.8. Jeepcomj did it, he is both on here and on comancheclub.com. It is a sweet swap, and if you wanted to the supercharged 3.8 would be a great choice as well, more work for that one of course. With your setup I would do the 3.8 before I tried much else, it will be the easiest for what you are after.

 

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RCP Phx

NAXJA Forum User

Location

Phoenix,Az

• Mar 19, 2009

• #6

Were doing something similar in my sons rig,1995 4.3 Vortec/4L60E trans.Its a "stand alone" system for easy wiring.

 

Johnnie Walker

Piece of Fish!

NAXJA Member

Location

WA state

• Mar 19, 2009

• #7

With a 2.8 the 3.4 L is pretty much a bolt in (swapping your stuff from the 2.8, of course) But 3.4 is the easiest replacement, is why GM offers it as a "direct"replacement for vehicle that originally came with a 2.8.

 

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emr1101

NAXJA Forum User

Location

Raleigh, NC

• Mar 19, 2009

• #8

Mullet Man said:

if you were gonna go thru the trouble, you might as well go small block V8, or atleast Jeep HO 4L I6.
and if you did a V6 swap, a 4.3 would be a much better choice then the 3.4 or 3.1. but still IMO, not as good a choice as a small block or 4.0.

ever thought about a homebrew turbo setup for that little V6?

just talking probably not much help lol.

Click to expand...

x2 (except the turbo thing lol)

 

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mgreen84

NAXJA Forum User

Location

Georgia

• Mar 19, 2009

• #9

emr1101 said:

x2 (except the turbo thing lol)

Click to expand...

read third reply.... besides the 84-86 xj's are not just a drop in plug and play for the 4.0L