chevytruck68

hey guys has anyone done a 95 3.4 swap into a 86 or so camaro or bird. i mean the 95s fuel injection and everything computer and all. i can pick up the complete engine tranny wiring harness and computer for 800 car had 74000 miles on it. i need to know how much rewiring needs to be done.

Dale

iTrader: (12)

I have wired the full 3.4-sfi-dis into my old s10. I will be honest, the benifits you will gain from MPFI to SFI is not worth the wiring hassles.

Going from carb to SFI yes
TBI to SFI possibly
MPFI to SFI, not worth it at all.

Project: 85 2.8 bird

or,.......

mainly the Gauge cluster if it's still a speedo cable unit.

If I had everything, I'd have done the full conversion the first time. Maybe it wouldn't have cought on fire then


But I'm basically doing the same swap w/the 3800 setup. go for it homie

drdave88

iTrader: (3)

im gonna beat KED to it (lol), read his tech article on the swap. if you want to swap everything over and go to DIS, its a ton more work. the gains arent worth the hassle. just use the 2.8 intake and all that, its much easier and less confusing. that way, there is no rewiring and all that to do. but if you want to go w/ the full swap, theres a couple of guys to talk to on here about it, most just do the stealth swap. good luck eithe way.

Project: 85 2.8 bird

disbelivers, all y'all!!!!!!!!

DIS is the next step in evil-lution

And teh coolness factor,... fess up Dale

FbodTrek

LOL, but really, if you can get the tranny too, go for it, although it is easier to do i the hybrid way.

chevytruck68

one reason i was gonna do the whole swap was the guy wont sell the engine seperate from the harness and computer. so i figured id just use the whole thing. second is if it has a DIS then i didnt know whether or not i could use a distributer in the engine with changing cams or other parts. and i didnt want to go the route of tearing the whole engine apart and having to buy more parts. im not doing it for more power just to replace the busted 6 in my wifes car. can i put a distibutor in the 3.4? and will the old intake fit the new heads no problem. the rest should be cake.

Project: 85 2.8 bird

Since that is your goal, do the "stealth" swap. The distributor will fit the block. KED85 has a tech article publshed on the main page, and a search will reveal plenty of others who have done this swap.

Dale

iTrader: (12)

project, I did it for the "cool" factor in a show only ride, yes. That thing was not reliable, and didnt have a speedo after I got done.

chevy86, yes, your intake will swap, a dsitributor will go in it. All you will need to do is buy a whole engine gasket set (minus heads). Get a timing chain also while your in it. It takes some work, but this "stealth" swap is the most reliable. More work up front, yes, less work and trouble down the road. I would rather spend some time up front for a happy wife down the road Sell the ecm on ebay, might beable to pawn the harness to.

Hardest part, is in the passenger rear head, you will have to remove a plug that usually requires ALOT of heat, and the proper tool to remove it. Rest is easy. Make sure to double tourqe the lower intake. I just finished my camaro swap this weekend, and by the time I torqued the last intake bolt, the first was finger loose again.

KED85

Buy everything from the guy.
Sell left over parts.
I've attached my pic of my 85 Blazer distributor going in to my 95 3.4 mill. And my Blazer project is a carb'd version of the 60* engine family. Yes, the carb is going back on this 95 3.4 mill (smog issues in CA dictates that decision-easiest to get on road, legal & quick). One day the Blazer will run a MPFI unit from 1985 F Body.
Simply put, you are doing a custom swap and you are the engineer/creator!
Simply put the easiest is just doing the 2.8->3.4 Long Block Swap Boogie (reusing the original vehicle induction/ignition/waterpump-pulley-timing chain-oil pan set up). The parts from the 3.4 KEPT & used on the swap are the 3.4 injectors (insert into the 2.8 fuel rail, then insert into the 2.8 manifold) & the 3.4 balancer & 3.4 flexplate (matched itmes, don't toss them! & MAKE SURE you DO get the 3.4 flexplate in purchase!). Leave the original 3.4 exhaust manifolds attached to the engine, as 3.4 manifolds fit perfect to your original vehicle exhaust system without a problem.
Either way, it is a very worthwhile swap project.
I've done it twice (see below) & my Firebird is 100% toughest CA smog test legal & very solid ride.
Blazer getting ready to hit road again!
Buy this guys stuff & keep asking.
Serious one big detail, MANY ANSWERS ya will receive, will make SO MUCH MORE SENSE, when both engines outta car, side by side & ya just examine. It is a truly bloody simple swap, when kept to minimal engineering decisions.
In the supplied picture you see, under the black valve cover, bottom left area, notice a black circle. That is where the plug (used on 3.4 engines) is removed for inserting the original vehicle factory fan switch.
This is the toughest part of the swap, this recessed oil galley plug removal. This is job one of the swap. Once that is done, rest of the swap is downhill.
PS so ya know, yes everything (original vehicle) fits 3.4 mill without a big hassle or truly big hammer.

I've coached, jeeze, what we now up to, guessing closer to 50 swappers these day?
Big tip, make sure, before ya pull your current drivetrain, everything works perfect (rebuild distributor now, too!). After the swap, that means less gremlin chasing!
My car pulls like a freight train SO MUCH TORQUE.
And my AC systme loves the new power.
Gas milage will increase.
This swap is a win-win situation for you.

Dale

iTrader: (12)

Hey, look at that, carbrated engine with a vacuume advance distributor.

Great clear picture ked!

KED85

My Blazer is a 49 state federal version 2.8, 1985. Last year for this set up, vacuum distributor.
If ya own a 2.8 carb'd F body (82-84) or a CA version Blazer (82-85) you'd see a computer controlled distributor in this pic.
Provided pic is what is removed from the 3.4 long block.
Boogie on!
Again note the hole below bottom black valve cover corner.