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What engines EASILY fit in a fiero? by Xeps
Started on: 02-16-2010 10:35 PM
Replies: 22
Last post by: FFIEROFRED on 02-21-2010 12:58 PM
Xeps
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Report this Post02-16-2010 10:35 PM Click Here to See the Profile for XepsSend a Private Message to XepsDirect Link to This Post
Ok, yes i searched, and im having trouble understanding/narrowing down most of what im finding....
I am trying to find a replacement engine for my 85 v6 automatic....
I am having trouble locating another fiero v6 engine from any junkyards in my area,
so i was wondering,
Are there any other engines from other cars that can be basicallly just bolted in as easily as the fiero v6?
I keep reading stuff about 3.4s 3.1s pushrods etc etc (which i have no idea wtf that means lol), but i google that and come up with nothing, or the wikipedia shows like a million different cars that engine was used in.

so i would appreciate it if someone could tell me if there is a diff engine besides a fiero engine that is a direct replacment w\o any modification and what car\year do i want it from so i know what to look for when im calling junkyards
or if there isnt a direct replacement what engines from what cars will work and how much modding is needed to do the swap?

sorry for the dumb questions, but im (obviously) not mechanically inclined.
Thanks for the help
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Report this Post02-16-2010 10:51 PM Click Here to See the Profile for joshh44Send a Private Message to joshh44Direct Link to This Post
3.4 from a 93' to 1995 camaro works great.
just gotta redrill holes for the starter. theres even a jigg for that so you cant mess up
pretty much plug in and play.
or you can try and find another 2.8 from any year fiero really and just drop it in.
i believe the 3.1 from the 3rd gen F bodys and cavilairs work also. not to sure.
i think there are others. someone else will chime in.
you could get a 3.8 from a buick or other cars that has the 3.8. its almost a bolt on. just need to redo the wiring. new mounts and exhaust. bolts to the trans. and it fits in the engine bay.
same with the 4.9 caddy V8.
easyest swap would be using another fiero 2.8.
next would be the 3.4

there are many other engines people put in the fiero. depends on how much money and work your willing to spend on it.
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Report this Post02-16-2010 11:06 PM Click Here to See the Profile for KhwSend a Private Message to KhwDirect Link to This Post
 
quote
Originally posted by joshh44:

3.4 from a 93' to 1995 camaro works great.
just gotta redrill holes for the starter. theres even a jigg for that so you cant mess up
pretty much plug in and play.
or you can try and find another 2.8 from any year fiero really and just drop it in.
i believe the 3.1 from the 3rd gen F bodys and cavilairs work also. not to sure.
i think there are others. someone else will chime in.
you could get a 3.8 from a buick or other cars that has the 3.8. its almost a bolt on. just need to redo the wiring. new mounts and exhaust. bolts to the trans. and it fits in the engine bay.
same with the 4.9 caddy V8.
easyest swap would be using another fiero 2.8.
next would be the 3.4

there are many other engines people put in the fiero. depends on how much money and work your willing to spend on it.


Was the 2.8 used in cars other then the Fiero? Like the Citation maybe? If so couldn't you get one of those and just swap the Fiero intake onto it?

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Report this Post02-16-2010 11:18 PM Click Here to See the Profile for Dennis LaGruaSend a Private Message to Dennis LaGruaDirect Link to This Post
If you just want to replace the 2.8L many good engines should be available ( some even lower mileage) as there are always lots of engine swaps going on. PLace an ad in the mall and you should get many replies. If you want an EASY upgrade the 3.4L pushrod engine as mentioned above is nearly a direct bolt in. They are somewhat hard to find used but new GM long blocks run about $1900. A few simple mods and it fits right in using the original trans, engine mounts , harness, plenum, timing cover etc. Its not a swap for an owner that wants ultimate high performance but 170-180 horsepower is possible with an improved exhaust , igniton and intake system.

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Report this Post02-16-2010 11:25 PM Click Here to See the Profile for joshh44Send a Private Message to joshh44Direct Link to This Post
i know the 3rd gen f bodys used some 2.8s. dont know if there the same block. im assuming they are. could just swap over the top end if its the same block.
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Report this Post02-16-2010 11:27 PM Click Here to See the Profile for BlacktreeClick Here to visit Blacktree's HomePageSend a Private Message to BlacktreeDirect Link to This Post
The 2.8 / 3.1 V6 was used in a LOT of GM vehicles. The trick is to find one with iron heads, so you don't have to tear it apart to swap pistons (the ones with aluminum heads use different pistons). The engines from the Chevy S10 (2.8), Pontiac TranSport (3.1), and Camaro / Firebird (2.8, 3.1, or 3.4, depending on year) should work. However, the S10 and Camaro / Firebird engines will require re-drilling holes for the starter. No matter which engine you use, you'll have to swap on the Fiero intake and belt-driven accessories, and possibly the oil pan and timing cover. There may be some other minor details I haven't mentioned, as well. But that's basically all the modification that's required.

I forgot to mention that if you use an engine from a 1988 or newer vehicle, you'll need an '88 Fiero flywheel / flexplate. That's because GM switched to an internally balanced crankshaft design in 1988. The earlier style flywheel / flexplate cannot be used on the '88-up engines, and vice versa.

[This message has been edited by Blacktree (edited 02-16-2010).]

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Report this Post02-16-2010 11:50 PM Click Here to See the Profile for uhlanstanSend a Private Message to uhlanstanDirect Link to This Post
Use the search feature at the top right of your post,,just look 2 fingers above EDIT and you will see it ""search""

enter "" 3.4 swap"" you should come up with enough info to Gladen your heart

Blacktree has actually done this swap...

[This message has been edited by uhlanstan (edited 02-17-2010).]

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Report this Post02-17-2010 12:02 AM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageSend a Private Message to fierosoundDirect Link to This Post
 
quote
Originally posted by Xeps:

I keep reading stuff about 3.4s 3.1s pushrods etc etc (which i have no idea wtf that means lol



Read here: http://www.thefierofactory.com/34.php

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3.4L Supercharged 87 GT and Super Duty 4 Indy #163

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Report this Post02-17-2010 12:22 AM Click Here to See the Profile for RaydarSend a Private Message to RaydarDirect Link to This Post
 
quote
Originally posted by Xeps:

I keep reading stuff about 3.4s 3.1s pushrods etc etc (which i have no idea wtf that means lol)
...


"Pushrods" just means that it's overhead valve, with the cam in the block.
The other configuration being DOHC, which has the cams in the heads, operating the valves directly, instead of with pushrods.

You want a 2.8, 3.1 or 3.4 with cast iron heads.
Any 2.8 or 3.1 from an 82 - early 90s camaro or firebird, or S10 will work, but the preferred engine is the 93-95 3.4 from the Camarobird.
(Try to avoid anything before 85. There were some major reliability changes made as the years went on. As always, newer is better.)

The 91 GM minivan 3.1 will work too, but they're so uncommon that they're hardly worth mentioning.

Anything from a RWD vehicle (like the Camarobird or S10) will require that holes be drilled to move the starter. This is not a big deal. Just keep it in mind.
Also, avoid engines that originally came with a carb instead of fuel injection. Most of the carbed engines had smaller valves and made much less power.

In all cases, you've got to have cast iron heads. Aluminum heads will require more work than you're prepared for.

Once you narrow down your choices to a couple of likely prospects, post back and we can give you specifics of each.

------------------
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Report this Post02-17-2010 09:22 AM Click Here to See the Profile for FieroWannaBeSend a Private Message to FieroWannaBeDirect Link to This Post
 
quote
Originally posted by Xeps:

I am having trouble locating another fiero v6 engine from any junkyards in my area,


sorry for the dumb questions, but im (obviously) not mechanically inclined.
Thanks for the help


I have a Fiero 2.8L you can buy if you can pick it up.
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bubbajoexxx
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Report this Post02-17-2010 11:07 AM Click Here to See the Profile for bubbajoexxxClick Here to visit bubbajoexxx's HomePageSend a Private Message to bubbajoexxxDirect Link to This Post
 
quote
Originally posted by Xeps:

Ok, yes i searched, and im having trouble understanding/narrowing down most of what im finding....
I am trying to find a replacement engine for my 85 v6 automatic....
I am having trouble locating another fiero v6 engine from any junkyards in my area,
so i was wondering,
Are there any other engines from other cars that can be basicallly just bolted in as easily as the fiero v6?
I keep reading stuff about 3.4s 3.1s pushrods etc etc (which i have no idea wtf that means lol), but i google that and come up with nothing, or the wikipedia shows like a million different cars that engine was used in.

so i would appreciate it if someone could tell me if there is a diff engine besides a fiero engine that is a direct replacment w\o any modification and what car\year do i want it from so i know what to look for when im calling junkyards
or if there isnt a direct replacement what engines from what cars will work and how much modding is needed to do the swap?

sorry for the dumb questions, but im (obviously) not mechanically inclined.
Thanks for the help


3.4 from the lumina van or pontiac montana are easy to find and the early ones are cast iron heads just swap your intake onto it and go
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Report this Post02-17-2010 05:55 PM Click Here to See the Profile for RaydarSend a Private Message to RaydarDirect Link to This Post
 
quote
Originally posted by bubbajoexxx:


3.4 from the lumina van or pontiac montana are easy to find and the early ones are cast iron heads just swap your intake onto it and go


The iron head minivan motors were all 3.1s, and only the early ones.

The later 3.1 and all of the 3.4 minivans had aluminum heads.
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Report this Post02-17-2010 07:20 PM Click Here to See the Profile for MykeSend a Private Message to MykeDirect Link to This Post
Correct me if I am wrong, but was there once a conversation aboout the Fiero 2.8 VS other 2.8 engines? I seem to remember something about the Fiero being an HO and the other produced a little less horse? Just curious.

Myke

PS sorry if the spelling is off. I am trying to post from my phone to see how this works.
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Report this Post02-17-2010 08:18 PM Click Here to See the Profile for MarkSSend a Private Message to MarkSDirect Link to This Post
I guess the Cadillac Cimarron or Chevy Cavalier 2.8 from 85-86 is pretty close to the original 85-87 Fiero V6. The intake manifold and exhaust headers are different but your Fiero's could be switched over. Did a Car-Part.com search for both the Fiero engine and cad / chevy engine. There were more Fiero 2.8 engines close by then the cad / chevy 2.8.'s, somewhat of a surprize.

BR's

Mark
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Report this Post02-17-2010 09:11 PM Click Here to See the Profile for bubbajoexxxClick Here to visit bubbajoexxx's HomePageSend a Private Message to bubbajoexxxDirect Link to This Post
 
quote
Originally posted by Raydar:


The iron head minivan motors were all 3.1s, and only the early ones.

The later 3.1 and all of the 3.4 minivans had aluminum heads.


canadian vans used 3.1and 3.4 tbi
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Report this Post02-17-2010 10:47 PM Click Here to See the Profile for RaydarSend a Private Message to RaydarDirect Link to This Post
 
quote
Originally posted by bubbajoexxx:


canadian vans used 3.1and 3.4 tbi


Cool. Learned something new...

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Report this Post02-18-2010 10:49 AM Click Here to See the Profile for ghostwalkerSend a Private Message to ghostwalkerDirect Link to This Post
Hello All here is a List of engines from other GM cars that will fit a Fiero I found it in the archives awhile back. have a great day and "GOD" Bless
ENGINE, COMPLETE

A "complete" engine means cylinder block and heads. It does not include accessories such as alternator, water pump, A/C compressor, etc., although some of these parts from a donor engine may coincidentally fit the Fiero.

'84-86 Fiero 2.5L Engine: Is the same as:

Pontiac 6000 '84-86 2.5L VIN "R"
Chevy Celebrity '84-86 2.5L VIN "R"
Buick Century '84-86 2.5L VIN "R"
Olds Cutlass Ciera '84-86 2.5L VIN "R"
Chevrolet Citation '84 2.5L VIN "R"
Olds Omega '84 2.5L VIN "R"
Pontiac Phoenix '84 2.5L VIN "R"
Buick Skylark '84-85 2.5L VIN "R"

'84-86 Fiero 2.5L Engine: The following engines can be used in a Fiero if injector and carburetor are switched, vacuum pump hole is covered, and distributors are changed. (These engines do not have the coil in the cap and they use a different distributor gear.)


Chevrolet Citation '80-81 2.5L VIN "5"
Olds Omega '80-81 2.5L VIN "5"
Pontiac Phoenix '80-81 2.5L VIN "5"
Buick Skylark '80-81 2.5L VIN "5"

'84-86 Fiero 2.5L Engine: The following engines can be used in a Fiero if the vacuum pump hole is covered.

Pontiac 6000 '82-83 2.5L VIN "R"
Chevrolet Celebrity '82-83 2.5L VIN "R"
Buick Century '82-83 2.5L VIN "R"
Olds Cutlass Ciera '82-83 2.5L VIN "R"
Chevrolet Citation '82-83 2.5L VIN "R"
Olds Omega '82-83 2.5L VIN "R"
Pontiac Phoenix '82-83 2.5L VIN "R"
Buick Skylark '82-83 2.5L VIN "R"

'87 Fiero 2.5L Engine: The following engines can be used in a Fiero except for the flywheel or flexplate. Change induction, exhaust, and electrical systems, pilot bushings as necessary. Will not interchange with '88 engines due to oil pan interference with frame.

Pontiac 6000 '87 2.5L VIN "R"
Chevrolet Celebrity '87 2.5L VIN "R"
Buick Century '87 2.5L VIN "R"
Olds Cutlass Ciera '87 2.5L VIN "R"

The following information was posted to Pennock's Fiero Forum by "Ray" from Houston, TX:

It is possible to get a better 2.5L engine for the '87-88 2.5L Fiero from a 1993 S-10. The 2.5L engine from the '93 S-10 should provide over 100 HP and considerably better mileage.
'88 Fiero 2.5L Engine: The following engines can be used in a Fiero except for the flywheel or flexplate. Change induction, exhaust, and electrical systems, pilot bushings as necessary. Will not interchange with '87 engines due to oil pan interference with frame.

Pontiac 6000 '88-89 2.5L VIN "R"
Chevrolet Celebrity '88-89 2.5L VIN "R"
Buick Century '88-89 2.5L VIN "R"
Olds Cutlass Ciera '88-89 2.5L VIN "R"

'85-88 Fiero 2.8L: The 2.8L Fiero VIN "9" engines are unique. There are no other automobile engines EXACTLY like these that can be dropped into a Fiero. However, other engines will fit with minor modifications noted below.

The following engines can be used in the Fiero by changing the intake manifolds, exhaust manifolds, fuel delivery system, and removing the power steering brackets:

Pontiac 6000 '82-84 2.8L VIN "X" & VIN "Z"
Pontiac 6000 '85-86 2.8L Two-barrel carb VIN "X"
Chevrolet Celebrity '82-84 2.8L VIN "X"
Chevrolet Celebrity '85-86 2.8L Two-barrel carb VIN "X"
Buick Century '82-86 2.8L VIN "X"
Olds Cutlass Ciera '82-85 2.8L VIN "X"
Olds Cutlass Ciera '86 2.8L Two-barrel carb VIN "X"
Chevrolet Citation '82-84 2.8L VIN "X" & VIN "Z"
Olds Omega '82-84 2.8L VIN "X" & VIN "Z"
Pontiac Phoenix '82-83 2.8L VIN "X" & VIN "Z"
Buick Skylark '82-84 2.8L VIN "X" & VIN "Z"
Buick Skylark '85 2.8L Two-barrel carb VIN "X"

'85-88 Fiero 2.8L: The following engines can be used in the Fiero by changing the intake and exhaust manifolds and removing the power steering brackets:

Pontiac 6000 '85'-86 2.8L EFI, VIN "W"
Chevrolet Celebrity '85'-86 2.8L EFI, VIN "W"
Olds Cutlass Ciera '86 2.8L EFI, VIN "W"
Chevrolet Citation '85 2.8L EFI, VIN "W"
Buick Skylark '85 2.8L EFI, VIN "W"

'85-88 Fiero 2.8L: The following engines can be used in the Fiero by changing the intake and exhaust manifolds, drive belt system, and removing the power steering brackets:

Chevrolet Cavalier '85-86 2.8L VIN "W"
Cadillac Cimarron '85-86 2.8L VIN "W"
Olds Firenza '85-86 2.8L VIN "W"

NOTE 1: A popular swap for the Fiero 2.8L engine is a 3.4L engine from a '93-95 Camaro or Firebird. This engine requires simple modifications that are beyond the scope of this manual. Other popular swaps are the Chevrolet Small Block V8 and the Cadillac 4.9L V8. For more information check v8archie.com and thefierofactory.com.

NOTE 2: New engine mounts are appropriate when replacing an engine. The 1988 mounts can be expensive. Robert Lachance advises that you can use the front engine mount from a early '90s Pontiac Transport 3.8 (non-supercharged) on a 1988 2.8L Fiero engine for about $100 less than the Fiero-specific mount from parts stores. No modification is required. We don't have the part number at this time but Robert reports the mount is available from GM dealers. If anyone can provide the part number, please let us know.

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Report this Post02-18-2010 06:41 PM Click Here to See the Profile for 30+mpgSend a Private Message to 30+mpgDirect Link to This Post
The easiest one is to buy a Fiero with a swap already done.

http://cgi.ebay.com/ebaymot...ks?hash=item1c104aaf

[This message has been edited by 30+mpg (edited 02-18-2010).]

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Report this Post02-18-2010 10:49 PM Click Here to See the Profile for XepsSend a Private Message to XepsDirect Link to This Post
 
quote
Originally posted by 30+mpg:

The easiest one is to buy a Fiero with a swap already done.

http://cgi.ebay.com/ebaymot...ks?hash=item1c104aaf



yes i was just looking @ this! i think this car looks pretty tight!
but with a 6k buy it now, the reserve is prolly to high for my pocket!
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Report this Post02-18-2010 11:46 PM Click Here to See the Profile for uhlanstanSend a Private Message to uhlanstanDirect Link to This Post
....A swap is not the kegger and panty raid you think,, even the easiest install requires a LOT of tools and at least one experience gearhead on the JoB..This is very difficult to do on a .. FIERO..
I have only pulled a Fiero Transmission..NOT easy unless you have pulled it a few times
......To pay an auto repair Garage to remove and replace the stock Fiero engine would cost $600.oo up..
A rebuilt 2.8 crate engine would cost $1150.oo,,A rebuilt 3.4 chevy V6 $1300.oo
To replace with a rebuilt crate engine $1600.oo to $2000.oo low end,but possible
If you are young you have visions of " cool you" in hot car
cheapest way out for low budget ?? rebuild your current engine,, you will gain mucho experience ,yes you will still have 2.8 V6..But only be out $450.oo on a budget re-ring ,valve regrind..new rod &crank bearings,oil pump,gaskets ,,shopping for best price parts
Better yet find GOOD used fiero V6,, that owner will stand by quality of engine
next at least a good engine .
Never think an engine swap is easy ,,many are never completed
If you buy a used engine there ia a 50/50 chance of getting a good one ,,best if you can hear it run..
What condition is your present engine ,, the one in the car..

Join a LOCAL FIERO CLUB ,,an alcoholic old gearhead may be member and for the price of 2 cases of beer ,you could have an on site gearhead advisor in your garage to help you over the rough spots,pick out lowest prices ,not to mention alkys know a lot of jokes from hanging out in Bars

[This message has been edited by uhlanstan (edited 02-19-2010).]

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Report this Post02-20-2010 09:48 PM Click Here to See the Profile for MulletproofMonkClick Here to visit MulletproofMonk's HomePageSend a Private Message to MulletproofMonkDirect Link to This Post
Is it what fits in easy or what costs less... What is your time frame? Is it a daily driver or can it be down for a few weeks... Those tend to become the real factors in the swap.

Not sure where you are in Ohio, but I am south of Dayton and working on a 3800sc swap.

------------------
-Brian

My 87 GT Poly Suspension Upgrade (all pics) thread https://www.fiero.nl/forum/Forum2/HTML/094633.html

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Report this Post02-21-2010 11:20 AM Click Here to See the Profile for Wicked86Send a Private Message to Wicked86Direct Link to This Post
It sounds to me like you're not all that concerned with performance gains, or actually doing a swap per se. More just to get a newer/more reliable motor in your car, so if that is the case, here is the shortest answer I can give. Now bear in mind that if you've never pulled or replace a motor yourself, then no swap is going to be exactly a no brainer, but if you've got mechanical skills and or ability, it can be accomplished painlessly. Starting out with a 6 cillinder car really helps you on this, you have a whole boatload of choices that you can go with just by swapping your intake, exhaust, timing cover, and drive belt accessories. The family of motors is called the 60 degree v6. They were used in a large portion of gm v6's, and your choices range from a direct replacement 2.8 up to a 3.4. Now, if you pull from a rwd vehicle, you have to redrill for the starter on the other side of the block. but there's even a kit for that, so it's not that bad as long as you are careful. I am building a 3.4 for mine right now, and would be done, if I had started tith a 6 originally. My problem has been finding all the Fiero spacific parts that I would already have with a 6 cyllinder motor. Also, here is a link to a 60 degree forum, it has really helped with my build, as this is the first motor that I've ever done that wasn't your average sbc V8.
http://www.60degreev6.com/

Hope that helps
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Report this Post02-21-2010 12:58 PM Click Here to See the Profile for FFIEROFREDSend a Private Message to FFIEROFREDDirect Link to This Post
The most bang for your buck is to buy a whole fwd, ( wrecked, but runs ) car. 2.8, 3.1, 3.4 and most times you will get the newer, stronger, much better MPG overdrive auto trans with the engine. check with towing companys. keep your eye out for some thing in the "walking wounded" catagory, you know, a car with a bag over a window, or the trunk smashed in. Cheap, runs, compleat.
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