I'we ben so into swaping to a V8 with archies kit, that i never looked for options. (Until now!)
I got the feeling the tranys might hold up better with a 3800S/C than a 5.7.
Iwe ben looking on posts about 3800S/C... What cars has the 3800S/C (Donor car.)
And what do i need other than the engine? Wire harnes? Different ECU? What?

I have a 87 GT 2.8 5-spd.
And more important, i'm in Sweden, so acces to parts/donor cars, are kind of limited.

------------------

87-GT 2.8L 5-spd.

Things that have the 3800S/C:
1997+ Buick Regal GS
1997+ Pontiac Gran Prix GTP
1996+ Buick Park Avenue Ultra
1997+ Buick Riviera Supercharged
1997+ Pontiac Bonneville SSEi & SE Supercharged
1996+ Oldsmobile 88 LSS
1995+ Monte Carlo LS Supercharged
200?+ Impala SS
1995+ Ebay

I am doing a 3800sc swap into my car, you may want to check out my build thread.

https://www.fiero.nl/forum/Forum2/HTML/068188.html

Hope you can learn something from it.

------------------

quote Originally posted by Kristian V: I'we ben so into swaping to a V8 with archies kit, that i never looked for options. (Until now!) I got the feeling the tranys might hold up better with a 3800S/C than a 5.7. Iwe ben looking on posts about 3800S/C... What cars has the 3800S/C (Donor car.) And what do i need other than the engine? Wire harnes? Different ECU? What? I have a 87 GT 2.8 5-spd. And more important, i'm in Sweden, so acces to parts/donor cars, are kind of limited.

Hi, With your last statement about parts being hard to get , I would recomend , just to buy the whole front clip from the donor car--that way , you`ll have most of what you`ll be needing from it. Hope this helps some...

Make sure you get both axles, cruise control, and exhaust down pipe flange.

both 5.7 and 3800sc are torque monsters.

Just don't drive it like you stole it and your trans will hold fine

------------------
3800 SC/IC Fiero

The 3800SC is an awesome engine, but if transmission longevity is your reason for changing your mind, you may be disappointed. The 3800SC is a strong engine stock, and with mods can make tremendous horsepower and torque. The transmission doesn't care if it's a 6 or an 8 - just what the powerband is. You can get a 3800SC stronger than many stock V8 engines that could kill the tranny faster than if you had gone with the V8.

Just pick whichever engine you prefer and build accordingly. The 3800SC will most likely get better mileage, but compared to a 350 with aluminum heads and intake, the 3800SC will also be heavier. An all iron 350 would be the heaviest of all, though.

Thank's!

So basicly i would be more gentle to the 5-spd with a V8, since the power would come smoother. If the power output would be the same on both engines, the V8 gives the power with 4 explotions per revolution, where the 3800S/C gives the power with 3 explotions per revolution. Hence the 3800S/C would have 1,3x more punch in every explotion..?
How about the wiring/electric part? what is the easiest way to go?

I finaly got around bying the Fiero. Been looking for them for years. Bought it in january-06, and the plan is to just upgrade looks a litle this season, i'm hoping i got all i need gatherd for next winter, to do the swap.
I got a complete interior from MrMike's in the mail last week, from the headliner down to the carpet (Carpet was deliverd from Fierostore, rest from MrMike.) I will change the whole interior asap. Hopefully the snow is gone in a fiew weeks, so i can get the car out on the road.

And now i don't know what way to go. All i know is that i wana give the Fiero a engine to match the looks.
The actual hardware part i'm not afraid of doing, no mater which engine i end up with, but the electric looks like a nightmare.

You could also try a 3.4L DOHC swap with 215hp@5,200RPM, 225ft/lbsTQ@4,000RPM
It redlines @ 7000RPM
It can be swapped from:
1991-1994 Chevrolet Lumina Z34
1991-1995 Oldsmobile Cutlass Supreme
1991-1996 Pontiac Grand Prix
1995-1997 Chevrolet Monte Carlo Z34
1995-1997 Chevrolet Lumina LS
1995+ EBay (ebay started in 1995)

Isnt this the easiest swap guys?

I you dont care about an electronic nightmare the Northstar DOHC V8 swap dosent make as much tourque as a 350 and just as much if not more horsepower (depends on year or type of 350)

[This message has been edited by 4-mulaGT (edited 03-25-2006).]

Hi Kristian I am from europe too and here are a few considerations I made before I made a choice (hope to keep it short )
in many european countries a V8 fiero is hard to register and made roadlegal, 4cil / V6's are accepted already but often dont mention size or type thats the grey area
decided to go V6 so 3.4DOHC or 3800IISC because theyre quite popular and documented swaps....from reading the dohc is a fun motor but lacks aftermarket tuning and upgrade options. The 3800IISC however has many upgrades to play with........its what I am playing with right now
pushrod engine with blower.....should be fun.
I have a dissasembled 350/5.7 sitting next to my L67/3800IIsc block and the 350 looks huge....never seriously thought about putting that in my fiero...

Thank's Fie Ro for the input.
I checked with the Swedish traffic/road asociation (Not sure what they are called in English.) and they accept 15 kW / 100 kg car. They would ofcorse check that i had brakes to match the power.
With a 350CSB I figure my Fiero would weigh in around 1350-1400kg so it would be OK with a 300 hp V8.

After I get it road legal, I could easely boost up the power, no inspector would be able to tell the difference betwine a light Fiero with 300 or 400 hp. Even with "just" 300 hp they would think it run like a bat out of hell!
Also the emision regulations state that from 89 years and up the car must have a working "cat", mine is a 87, sĺ i would probobly build it without the "cat". The Corvette around 90-95 had just shy of 300 hp, so thats probobly the way to go, and also the 12" rotors from the vette.
Or atleast that's what i thought untill i started to question why ppl chosed the 3800S/C instead of a V8.

Next question that pops up is, what kind of mpg gain is thare to make, chosing the 3800S/C over the 350CSB?
About twice important question here in Sweden, where gas cost over 11SEK/Litre. = $1,38 x 3,785 = $5,22/Gal.
I guess the gas cost pretty much the same in the Netherlands, so above info where more for our US-friends.

------------------

87-GT 2.8L 5-spd.

[This message has been edited by Kristian V (edited 03-26-2006).]

just my .02, you will get some more accurate info shortly, I'm sure.
I beleive the best on gas is the 3.4 dohc, then the sc, and a distant last would be the sbc.
In order of mechanical difficulty, I think it is the same order, the 3.4 is easiest.
in order of electrical, probably the sbc with a carb, the sc, then the dohc, depending on the year of the motors of course.
I have some interest as a long term planning swap, I already veto;d the sbc even tho I could have had a nice vette motor thru a friend for under 500$ with ecm.
personally, it is really a tough choice on the 2 6's, but as I would still be using it as a daily driver, I think I would go for the dohc motor and the wiring, over the 3800sc only due to less mechanicals for the swap, less chance of blower issues, and the better economy.
Also with my lead foot I think the sc would start costing my trannies.

I have 3800sc (new) and a 4T60E(rebuilt)in my 88.I don't put many miles on it,but smiles per gallon were about 27 when it was first done.The one thing I have never seen on this forum is the oil pump runs at engine RPM instead of camshaft RPM.Translated----the oil pump runs twice as fast in the 3800 engine which assures very good oil pressure,even at a hot idle.

No mater what engine im going to chose, i will be taking it down in to peces, can't afford a new one.
What can / should i do with the 3800 when i rebuild it? Does it have forged pistons, or should i install them?
And what else???

------------------

87-GT 2.8L 5-spd.

quote Originally posted by 4-mulaGT: Things that have the 3800S/C: 1997+ Buick Regal GS 1997+ Pontiac Gran Prix GTP 1996+ Buick Park Avenue Ultra 1997+ Buick Riviera Supercharged 1997+ Pontiac Bonneville SSEi & SE Supercharged 1996+ Oldsmobile 88 LSS 1995+ Monte Carlo LS Supercharged 200?+ Impala SS 1995+ Ebay

I been looking around for those. Rare cars in sweden.
I started to think, "import" from US.. What would i have to pay for a good engine?
And where would be a good place to look? Exept the obvious "e-bay"..
(Still need a "real engine". The extra Fiero 2.8 is just to keep me going over this summer.)

------------------

87-GT 2.8L 5-spd.

car-part.com is a good site to find parts. using this site i found a engine that was close to me for the right price.

I know of a few people here in the netherlands who had their engines imported from the USA, I hope they read this and give some info.....but you may find them in europe if youre lucky. I found my 3800IISC overhere (thanks to ducattiman), it was a german grandprix, I also got some additional parts from the yard which makes my swap easier

quote Originally posted by Fie Ro: I know of a few people here in the netherlands who had their engines imported from the USA, I hope they read this and give some info.....but you may find them in europe if youre lucky. I found my 3800IISC overhere (thanks to ducattiman), it was a german grandprix, I also got some additional parts from the yard which makes my swap easier

May i be so bold, and ask how much you had to pay for yours?

I looked at the link anthony provided above, great link. Thank's!
I found atleast two engines with about 70'000 miles on them near my sisters. (She lives in the US.) On my first search.
Question is, How much it would cost to ship a palet with two engines here?
Im gona ask her husband, if he might help me out, find prices and good objects. Prefferebly objects he can verify where running.

Lot's of "if's and but's", but i'm not in such a rush.

------------------

87-GT 2.8L 5-spd.