Would one of the 3.4's out of a Lumina Z34 work in our cars? Would it hook up to the 4 clicker getrag? I can get one of these engine at a decent price if it would work... let me know. thanks

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~James

1986 Fiero GT!
2.8 4 clicker. White face guages, blue backlighting, grey marlbe dash kit, IRM sie rocker scoops, fierostore.com 1/4 window scoop, V8 Archie Warber hood, rear added sway bar, silver mesh inserts in tail-lights, mesh inserts in turn lamp and grill, KYB shocks and struts, Eibach lowering springs, 300 watt amp, and 600 watt 12" sub, clarion pro audio 5x6" plates, Kenwood Xcelon 4x10's, clarion pro audio cd player, monster calbe wiring, rockford wiring, pheonix gold wiring, chrome ocelot exhaust tips

quote Originally posted by JamesWM83: Would one of the 3.4's out of a Lumina Z34 work in our cars? Would it hook up to the 4 clicker getrag? I can get one of these engine at a decent price if it would work... let me know. thanks

Yes and no. According to my info, the 3.4 out of a Lumina Z34 (91-95?) is a TDC instead of a pushrod. If it is a pushrod, it is probably an aluminum head. In either case, you will need to get the wiring harness and ECM from the donor car to get it to work right. It should bolt up to the tranny with no problem. If your engine is externally balanced, you will also need a flywheel from a 88 Fiero. When you get the engine, try to get the AC, alternator and any other accesories. Otherwise, you will have to weld brackets for the Fiero ones.

Info on 3.4 TDC: http://members.nbci.com/fierov6/OSG/mod.3400-TDC-V6.html

PS. The Fiero 4 spd MT is a Muncie. Getrag was the 5 spd for later V-6's.

All Z34s are TDC in '94 and DOHCs in '95 and up. If you are going with a std trans, I would recommend getting a Z34 getrag as the gearing is better matched to the TDC power band that the Fiero getrag. If you search around you will find tips on installation such as rework the right decklid hinge and remove the torque strut bracket. CM Westco has a kit pros: mostly complete and will save time; cons: but its kind of expensive. GL

Just FWI..

TDC and DOHC mean the same thing.

TDC = Twin dual cam. Thus, 4 cams.

DOHC = two cams per head. V6 has two heads. thus, 4 cams.

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1988 Quad 4 Coupe 5 speed

1986 GT 5 speed, 1984 SC Auto
AOL: LastMinuteBastrd AIM: SavedbyJebus

Std, if that was directed my way thanks but I'm quite aware of it. I just use proper factory naming conventions. Note my PFF name...

Naw. I knew that was going to make me sound like a smarta$$.. sorry 'bout that.

Whats the best 3.4 to find as far as installation goes? Im not worried about stock performance because the engine will be totally rebuilt for turbo performance. I know the ones from camaros and firebirds need to be drilled and tapped to locate the starter on the other side, are there 3.4's with the starter already on the right side? what years are these and what cars did they come in? Which pushrod engines had aluminum heads? I plan to use a haltech ecu so im not worried about swapping the entire computer. Any more info will be appreciated.

Yeah,it'll bolt in with only a few little things moved,a few days of sorting wiring.
The stock flywheel works great in mine after grinding off the counterweight,making it nuetrally ballanced.
I've never seen a 5sp TDC car produced by GM,even though it's listed in some parts books,the dealers in the Detroit area were unable to source a clutch,so they're very rare it seems.Probably were only made as far as testing would take it;like the power steering in the '88s.
The only things you'd need to "make" are a couple of hose adaptors/spacers,and the exhaust.The only things you'd need to purchase that aren't easily available at the neighborhood parts store are the urethane motor mounts,and a way to correct the fuel/air mixture;I used an electronic box that you can now get for $325.

It's a 'fairly' simple swap... the engine bolts up, and you use an 88 nuturally balanced flywheel.

The engine is a 3.4litre Dual Overhead Camshaft v6. 4-valve heads.

Talk to Chris West, he knows everything about these puppies. I just saw his 3.4TDC Fiero in person. After he put the turbo on... Woah momma!!!

What is the difference between the "TDC" and "DOHC" designations, ie what changed 94-95 ? I've never heard of a naming distinction.

Best!
Ben

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Ben Cannon
88 Formula, T-top Metalic Red
88 Formula, Silver
87 Coupe, Metalic Red
"Every Man Dies, not every man really Lives"
-Mel Gibson, "Braveheart"

Std, no apology necessary. After reading my reply I sounded a bit smart arsed myself. wasn't intended to be so sorry if it offended.

Artherd, They changed the heads and timing belt setup slightly and the marketing geeks took the opportunity to see if they could bait some of the previous TDC diehards to trade up to the 'new' DOHC. That tells you what the auto manufactures think of their customer's IQ. Also there is more 'fitting' needed for the TDC/DOHC swap than there is w/ the pushrod engine as I mentioned in the previous post. Also, whether using an auto or std trans, you should use one that was mated to the Z34 as they are geared to match the powerband and revs of the 4 valve motor. The same goes for quad4s but they have a different bolt pattern which necessitates proper tranny matching.

lowCG, there are a few of the 284s out there but as you mentioned they are rare indeed. If you hit up some of the Z34 boards you can 'chat' with a few of them. I'm an automatic man myself especially since they are computer controlled these days (less hydraulic programming and more software programming!!!)

Did they make a 3.4 liter pushrod engine? all I see here is TDC and DOHC, I want a pushrod engine. I want it to look like a 2.8 down to the valve covers. Where can I find one?

They sure do. Aside from the iron head 3.4 they make the 3400. I've got one. Some fabrication needs to be done. I will be posting pics of my conversion soon.

I only know of one other...Steve.

[This message has been edited by Joe Torma (edited 08-24-2001).]

quote Originally posted by pontiacs4me: I want it to look like a 2.8 down to the valve covers. Where can I find one?

The 3400 will not look like a 2.8. You have to use the intake/valve covers/throttle body/DIS from the 3400. If you want a list of parts, I have been compiling an Excel spreadsheet of the different parts for the swap.

quote Originally posted by Joe Torma: I only know of one other...Steve.

I love being unique.

I dont want a 3400 I want a 3.4. I know they are almost the same as the 2.8, I did a search last night and found a bunch of info on the 3.4 pushrod engine. I think Im going to find one out of a camaro or firebird. Im using the fiero intake, valve covers and etc. This thing is going to be cool.

http://www.geocities.com/calgaryfieros/tonys87.htm

Pontiac Transport FWD 3400 roller-cam block, Fiero heads and top-end. Looks stock, works great!!

[This message has been edited by fierosound (edited 08-25-2001).]

quote Originally posted by fierosound: [B] Pontiac Transport FWD 3400 roller-cam block, Fiero heads and top-end. Looks stock, works great!! B]

Decent setup, but lacks the GEN III head advantage--and 2.8 intake runners are a bit smaller than the 3400.

I would also strongly advise the use of a stock clutch,not a stock clutch rebuilt with Kevlar lining,not guaranteed from the vendors that won't accept Visa/MC.
Even in California.