Once upon a time in a far away land I thought I wanted to do a 3.4 DOHC swap. I bought a bunch of parts near a friend's house in PA, then life stuff happened and somehow I ended up in OR and the engine is still in PA, meanwhile I've opted not to use the 3.4 DOHC. My buddy is hassling me to get rid of the thing, so it's time to part ways...you know, the old "my loss is your gain" shpeel.
So, here's what I've got:
'96 3.4 DOHC from Monte Carlo, complete with wiring (minus accessories), pulled from wrecked car with 26k miles '88 Flywheel (neutral balance, required for 3.4 DOHC into Fiero w/ manual trans) Centerforce Dual Friction clutch set West Coast Fiero polyurethane mounts ECM w/ appropriate PROM in sealed package 3/8" header flanges made for 3.4 DOHC (laser cut, I believe) Front engine mount for '88 Fiero V6 (mates DOHC to 88 cradle) GM manual for the Monte Carlo
The whole setup is in Greenville, PA. The engine has never been stored outdoors (stored in the garage), and the rest has been stored in the house safe and sound. There are no known issues with any of the parts, when I bought them I had full intentions of bolting it all into the Fiero and using it in a track-day car. It's really a great swap as far as effort, time, and money goes for the power gain, IMO. Hopefully somebody with less time and money that's looking for a good bump from the stock 2.8 can put this to use. I paid about $1500 for the whole setup, so I'm basically offering this at half price because it's not serving me any purpose and I just want to get rid of it. Please, somebody put this to use.
Bryce
Edit: Forgot some stuff on the list, updated
[This message has been edited by Nashco (edited 07-31-2007).]
IP: Logged
01:14 AM
PFF
System Bot
Nashco Member
Posts: 4144 From: Portland, OR Registered: Dec 2000
I'm extremely interested, but unfortunately, I just put $675 out on the Fiero itself, so $800 immediately wouldn't land me in a good financial situation if I jump on this. Do you have a general weight range of the 3.4 DOHC, though? Just so I can gauge it against other motor-swaps before I make a more final decision?
IP: Logged
04:10 PM
Nashco Member
Posts: 4144 From: Portland, OR Registered: Dec 2000
I'm extremely interested, but unfortunately, I just put $675 out on the Fiero itself, so $800 immediately wouldn't land me in a good financial situation if I jump on this. Do you have a general weight range of the 3.4 DOHC, though? Just so I can gauge it against other motor-swaps before I make a more final decision?
It's nearly the same as the stock 2.8, as they're nearly identical aside from the heads and intake (which are different but weigh about the same).
Bryce
IP: Logged
05:46 PM
cooguyfish Member
Posts: 2658 From: Hamilton, OH, USA Registered: Mar 2002
It's nearly the same as the stock 2.8, as they're nearly identical aside from the heads and intake (which are different but weigh about the same).
Bryce
or not, the stock 2.8 weighs 375ish lbs, the stock 3.4 weighs close to 500.
That's not my measurment either, that was according to a guy who does engine swaps for a living.
Past that, tell me what your zip code is, I may just go ahead and buy this off you. is the wiring harness already done/wired for a fiero or you just have the stock 3.4 one?
IP: Logged
07:16 PM
Formula88 Member
Posts: 53788 From: Raleigh NC Registered: Jan 2001
I'd have to agree the 3.4 is HEAVY. The cam towers with the cams in them weigh around 45lbs., and the heads about 25 lbs each. other than that the blocks should be close to the same weight.
or not, the stock 2.8 weighs 375ish lbs, the stock 3.4 weighs close to 500.
That's not my measurment either, that was according to a guy who does engine swaps for a living.
Past that, tell me what your zip code is, I may just go ahead and buy this off you. is the wiring harness already done/wired for a fiero or you just have the stock 3.4 one?
Believe what you want about engine weights, I've never seen an engine weight on the internet that I trusted unless I saw a picture of what was on the engine when weighed (accessories, flywheel, etc.). Too many variables. FWIW, the only thing that is different is the heads and intake. I do know the heads are sizeable, but I have no idea what their weight is.
Zip code is 16125 (Greenville, PA). Wiring harness is stock.
Bryce
IP: Logged
08:47 AM
Nashco Member
Posts: 4144 From: Portland, OR Registered: Dec 2000
I know you said the engine is complete, but just to be clear, does it come with accessories? AC compressor, Alternator and power steering pump?
I'm going off memory (I will confirm shortly) but I'm pretty sure it has all the accessories still. As I recall, the only thing missing was the exhaust.
Bryce
IP: Logged
08:49 AM
Apr 11th, 2007
Nashco Member
Posts: 4144 From: Portland, OR Registered: Dec 2000
When I weighed mine dressed it weighed 465lbs with alternator and ac
With flywheel, flexplate, or neither? If it was the flywheel, which flywheel? What exhaust (manifolds, y-pipe, etc.)? Fiero AC compressor or otherwise? I assume the engine was dry (no oil/coolant). That's all good stuff to mention when giving engine weights. Thanks for the info.
Bryce
IP: Logged
11:17 PM
Apr 19th, 2007
Nashco Member
Posts: 4144 From: Portland, OR Registered: Dec 2000
Still looking to sell this complete. I've had a few guys ask about splitting it up and right now I'd rather not. It's just so simple to stuff it into a Fiero with these parts, I guess I was hoping a Fiero enthusiast would pick it up. I'll hold out for another week or so, if you're on the fence now's your chance to make a decision.
Bryce
IP: Logged
01:34 PM
Apr 26th, 2007
Nashco Member
Posts: 4144 From: Portland, OR Registered: Dec 2000
Last bump before splitting this up. For those of you who are interested in certain parts of the package (there were several of you) go ahead and shoot me a PM/email again.
Bryce
IP: Logged
02:00 PM
May 7th, 2007
Nashco Member
Posts: 4144 From: Portland, OR Registered: Dec 2000
This complete swap package is still for sale...$700 now, this is the best deal going anywhere on the net that I've seen for a '96-later 3.4 DOHC package. Bump to the top!
Bryce
IP: Logged
07:24 PM
dsnover Member
Posts: 1668 From: Cherryville, PA USA Registered: Apr 2006
A stock 3.4L TDC weighs in at 550 lbs. in the same weight class as some SBC's and heavier than the Northstar. It is one of the heaviest if not the heaviest V6 engine produced in the last two decades. A swap adds about 200 lbs more weight over the 2.8L. Now on a price to power vs. weight ratio, if you could do this swap for $1500 using the above engine you are IMO still doing good. Just be advised that the 3.4TDC doesn't have the best reputation for reliability and the bottom end power isn't real strong.. Reliability and cost of manufacturering are the key reasons that GM dropped the engine several years ago.
------------------ 87GT 3.4 Turbo- 0-60 5.2 seconds 2006 3800SC Series III swap in progress Engine Controls, PCM goodies, re-programming & odd electronics stuff " I'M ON THE LOOSE WITHOUT THE JUICE "
A stock 3.4L TDC weighs in at 550 lbs. in the same weight class as some SBC's and heavier than the Northstar. It is one of the heaviest if not the heaviest V6 engine produced in the last two decades. A swap adds about 200 lbs more weight over the 2.8L.
A stock 3.4L TDC weighs in at 550 lbs. in the same weight class as some SBC's and heavier than the Northstar. It is one of the heaviest if not the heaviest V6 engine produced in the last two decades. A swap adds about 200 lbs more weight over the 2.8L. Now on a price to power vs. weight ratio, if you could do this swap for $1500 using the above engine you are IMO still doing good. Just be advised that the 3.4TDC doesn't have the best reputation for reliability and the bottom end power isn't real strong.. Reliability and cost of manufacturering are the key reasons that GM dropped the engine several years ago.
Dennis...don't you EVER get sick of pissing in everybody's corn flakes on a regular basis? I keep my mouth shut when you do it in other threads, but when it's my own thread and I'm trying to sell something...that's where I draw the line. Please take your grumpy ass out of my thread, and if you would be so kind as to not bother replying in my threads in the future that would be super.
I really dislike the unsubstantiated weight claims thrown around here...earlier in this thread somebody claimed the 3.4 DOHC was 125 pounds heavier than the 2.8, which in itself is a pretty wild number but I didn't much argue. Now you're saying 200 pounds. Seriously, think about how much metal it would take to add *200* pounds...then consider that the 3.4 DOHC is essentially identical to the 2.8 aside from heads and intake. Do you mean to tell me that the heads and intake weigh an additional 200 pounds??? Then, to say it's the heaviest V6 engine made in the last two decades? How much do you want to bet Dennis? Where do you get off saying this engine swap is going to cost $1500??? I'm offering this for $700, all that needs done from here is add an alternator, cooling hoses, fuel lines, exhaust, and wiring changes...all pretty simple stuff. I suppose that would cost you $800 more if you were paying a shop to do it...but if you're doing it yourself (aside from exhaust, which a shop could do quicker/better/easier than most people) you'll have it on the road for under a grand...fresh clutch, low mileage engine, etc. No way you are going to get over 200 hp any easier in a Fiero at that price. If you were handy you could make some headers, an intake, and adjust the cams for another 40 hp or so and still be in the $1500 range.
I'm selling this as a drop in engine swap kit to give somebody with a 2.5 *literally* double the engine power for $700, and about a 50% increase in power for the 2.8 owner. This is not an end-all ultimate-fiero super-ultra-awesome-high-tech-unbreakable-featherweight-Dennis LaGrumpy-approved engine swap kit. It is, however, one hell of a fantastic deal on a 3.4 DOHC swap kit if you've got a Fiero and need to replace your 2.8 engine or want to replace your 2.5 with something a bit more lively. If the engine wasn't 2500 miles from me, I would have dropped it into a beater Fiero (or Beretta, or Cavalier, etc.) just to have a daily driver beater that would be a blast to drive for a while, then sell it for a profit. But it is 2500 miles away, so I can't, so I'm trying to do the Fiero community a favor and pass it on to somebody who can put it to good use. Sheesh, give me a break!
As I said guys, let me know if you're interested. I've been hoping somebody would buy this race prepped Fiero and drop it in there, that would be a hoot to drive!
Bryce, Actually I'm the proud new owner of that SCCA Fiero you linked to. I expect to have the car shipped up here to PA within a few weeks. I can't wait to go play with it, I think it'll be a great handling car. I'm still weighing out my costs/complexity in considering buying your engine.
I'm not a mechanic, so I've got to have my mechanic do the swap (I'm certainly going to get my hands dirty and help, but I can't do it alone). I was planning on running the Duke in the car until it gives up, which probably wouldn't take long , but if I can get this 3.4 in the car cheaply, it may be worth it. Being new to Fiero's, I'm still doing research. I suspect the 4 speed tranny in the car wouldn't be able to handle this motor, correct? Also, do you know what it would cost to ship that motor a few hundred miles?
Steve
[This message has been edited by Klayfish (edited 06-19-2007).]
IP: Logged
08:08 PM
Jun 20th, 2007
Nashco Member
Posts: 4144 From: Portland, OR Registered: Dec 2000
Originally posted by Klayfish: I suspect the 4 speed tranny in the car wouldn't be able to handle this motor, correct? Also, do you know what it would cost to ship that motor a few hundred miles?
The 4 speed will work with this engine fine. Depending on the type of racing you're doing, you may want to eventually go to the 5 speed just for the closer gear ratios (ie if you're doing road courses), but for autocrossing the 4 speed will get the job done just fine. As a person who's driven many different Fieros, I know you'll really appreciate more power in that car, it can transform the car from a so-so corner carver to a mean machine.
As far as shipping goes, if it's only a few hundred miles I'm pretty sure I could talk my friend into doing it for $50 + whatever gas costs and it would be delivered to your door, but of course I'd have to check. If you're serious about getting the engine let me know and I'll make sure.
Bryce
IP: Logged
12:33 PM
Jul 10th, 2007
Nashco Member
Posts: 4144 From: Portland, OR Registered: Dec 2000
Wow, I can't believe how many people have said they were getting this, then eventually bailed. Oh well...back on the market.
Since I still haven't sold this stuff, I'm considering just shipping it to myself from PA, dropping it into a local Fiero (or Beretta, or whatever), and selling it. If anybody in the Portland/Seattle/Spokane area has a car they want this engine in, we can work something out for me to install this, I'll swap it in and have it running, debugged, etc. for you.
Bryce
Edit: fixed grammar
[This message has been edited by Nashco (edited 07-10-2007).]
IP: Logged
12:09 AM
PFF
System Bot
NYRED85GT Member
Posts: 360 From: Niagara Falls, NY Registered: Apr 2007
Does it come with the engine and transmission wiring harness? So NO alternator but YES to exhaust manifolds and "y" pipe? Is everything listed below still included in the $700 price?
'96 3.4 DOHC from Monte Carlo, pulled from wrecked car with 26k miles '88 Flywheel (neutral balance, required for 3.4 DOHC into Fiero w/ manual trans) Centerforce Dual Friction clutch set ECM w/ appropriate PROM in sealed package 3/8" header flanges made for 3.4 DOHC (laser cut, I believe) Front engine mount for '88 Fiero V6 (mates DOHC to 88 cradle)
Thanks, Mike
IP: Logged
04:45 PM
Nashco Member
Posts: 4144 From: Portland, OR Registered: Dec 2000
Sounds like a deal to me. If I had the money or space for it I would be all over it. My 4.9 build is keeping me from persueing other options at the moment. Though I do have an 88 coupe that could use a new motor next. Hmmm. Good luck in your sale. Portland ROCKS!
[This message has been edited by Fieroseverywhere (edited 07-11-2007).]
IP: Logged
12:31 AM
Jul 12th, 2007
NYRED85GT Member
Posts: 360 From: Niagara Falls, NY Registered: Apr 2007
Well if it stays in PA until the 20th or later then I will try to scrape together the money and make a trip but I cannot make a promise right now. Thanks.
Mike
IP: Logged
12:41 AM
Jul 31st, 2007
Nashco Member
Posts: 4144 From: Portland, OR Registered: Dec 2000
Wow, I can't believe how many people have said they were getting this, then eventually bailed. Oh well...back on the market.
Since I still haven't sold this stuff, I'm considering just shipping it to myself from PA, dropping it into a local Fiero (or Beretta, or whatever), and selling it. If anybody in the Portland/Seattle/Spokane area has a car they want this engine in, we can work something out for me to install this, I'll swap it in and have it running, debugged, etc. for you.
Bryce
Edit: fixed grammar
I'm a bit south of there but I am serious. Let's talk numbers. I have plenty of donor cars.
Someone please jump on this! LQ1's are amazing (LaGrue has a chip on his shoulder), and the extra weight is nothing to complain about, if anything its one of the strongest DOHC engines out there. Really good deal!
Good luck with the sale Nashco. I would have bought it from you last year when I did my swap if it were available.
Where do you get off saying this engine swap is going to cost $1500??? I'm offering this for $700, all that needs done from here is add an alternator, cooling hoses, fuel lines, exhaust, and wiring changes...all pretty simple stuff. I suppose that would cost you $800 more if you were paying a shop to do it...but if you're doing it yourself (aside from exhaust, which a shop could do quicker/better/easier than most people) you'll have it on the road for under a grand...fresh clutch, low mileage engine, etc. No way you are going to get over 200 hp any easier in a Fiero at that price. If you were handy you could make some headers, an intake, and adjust the cams for another 40 hp or so and still be in the $1500 range. 
