Ok, i am thinking about putting a 3.4L in my car because my engine is spent, my question is, will i see an increase in power? There is not that much difference between the two size wise but they are both 6's but i sotn know, and also, can i use most of my origional parts liek wireing harness or will the swap be a complicated as a 350 swap?thanks

 

No, its a drop in engine. Read Ked85's article here. It is excellent read it once everyday for 2 weeks. Then you will know what you mean. It is much easier than installing a 350TPI.

The gains are 25hp over the 2.8 and 40ft/lb

 

No, its a drop in engine. Read Ked85's article here.
https://www.thirdgen.org/techbb2/sho...ghlight=boogie
It is excellent read it once everyday for 2 weeks. Then you will know what you mean. It is much easier than installing a 350TPI.

The gains are 25hp over the 2.8 and 40ft/lb

 

Where did you pull that thread up from?

Yeah, it's such a great swap!
Honest.
From one that lived in Schwenksville & Salford for abit.
Read teh thread. Read it again.
Go to your car.
Open hood and look.
Imagine everything I wrote.
It works GREAT
Pulls like a fu(king freight train.

 

For pics of a melted-2.8-to-running-2.8 swap, check out my page at http://www.geocities.com/tomp_3rdgen - your swap will look the same, except you'll have a 3.4 block.

 

ok, i have read his tech artical and i have 1 question, do i have to use the 3.1 oil pan or can i use the 3.4 that comes with it, o, and i am getting a HT 3.4 GM replacement engine from Jim Pace for 1779.95, it says that it is the perfect upgrade for a tired 2.8 V6 so i figure that it will work just as good in a 3.1 engine.O, and it is a crate engine so will i still have to do things like oil pan and other things? thanks

 

Are you crazy?
GO TO YOUR LOCAL DEALER AND BARGIN FOR THE ENGINE.
Go get a running long block from a wrecking yard.
Search.
G0d I know of tons of wrecking yrads out there.
I know of one is Sellersville. He rememebred me from the 70's too!
And in Levittown, I can rattle off a few on I think Rt 413.
Anything you have on your old engine, put on the 3.4.
It's guaranteed to fit.

 

It actually took a little while to find.

But it is an awsome thread. Like I said read it 10 times, and you will be able to tackle most anything you come against. Its one of the most informative threads onthe V-6 board. Althought the tune-up is along the same lines.