87 engine into a 84 temp fix (Page 2/2)
Daytonaspeed24 OCT 14, 07:11 PM

quote
Originally posted by 82-T/A [At Work]:
Dude, I'm so sorry. Just like everyone else has said, it is absolutely NOT going to help you out.

Among a few really important things:


1 - There is no hole for a distributor (only for a sensor)
2 - There is a crank and cam sensor
3 - The engine uses a completely different pulley set.
4 - The engine uses a completely different ignition system with totally different ECM.
5 - The engine uses a different cyl head, which has a different intake manifold and throttle body than your 84.
6 - The engine uses a different front motor-mount bracket
7 - The engine uses a different alternator, and A/C compressor.
8 - It uses a different pulley system.

With an 84... you can basically use any engine from a 1984-1986. Halfway through 1985 and 1986 it uses a roller cam (which is objectively better, but no available aftermarket cams from what I can see).

You basically do not want to use this, and in my honest opinion, it's not worth the hassle because there are so many other things you'll need to buy.


.


Can I ask how much you paid for it? I'm actually looking for an 87 (non-88) block and cyl head. I would be interested in buying it from you if shipping and everything isn't that bad. On the other hand, if you were willing to go through the effort and work... an 87 block would be an upgrade to your 84 engine. It was the first (Fiero) motor to use a belt tensioner, as well as DIS ignition. There's a lot you would need to do if you wanted to make it work, including buying a lot of parts that you're currently missing... but you could also go with a MicroSquirt ECM and build your own harness and just buy all the new sensors.

Let me know what you plan to do with the motor, even though we're on the other side of the continent. I'd hate to see you junk it...


Thanks!


i paid 300 CAD for the motor and 100 for gas. my 84 came with roller cam and roller lifters Vin R its like the 301000 built hahaha in 84 . where are you from.the only thing that is the same apparently from what i researched is the camshaft from 84 to 88 is the same.my rockers are non adjustable. I just wanted the motor to move the thing around while i sort out whats wrong with the one I had built. as this is a paid space not to many folks would want to help push it in the ice and snow from the parking into the shop. what would be cool is i have my 2.5 racing motor from my Daytona that would be cool to stuff in there but it wont work either. but it will work in a Rampage hahaha if i could find one.let me know where you are from and ill see if I can find a shipping quote
Dana

Mickey_Moose OCT 14, 09:21 PM

quote
Originally posted by olejoedad:

There are several C500 and C203 wiring differences between the 84 and 87, and the C500 is in a different location.

It's going to be an interesting project.



I am aware of those - like I said, was involved in wiring up a 4.9l in a 84. lol
theogre OCT 14, 10:55 PM

quote
Originally posted by Mickey_Moose:
ok,

what is see here is that it shouldn't really be much different than any other engine swap. If it will bolt in it would just be a matter of changing the wiring and ECM - no?

Yes, I know the 84 is a different beast, but I don't see why it can't be done - hell, the first 4.9l swap I helped with was in a 84 - talk about rewiring. lol

Now, yes doing this swap would NOT be temporary without swapping the whole harness (otherwise any changes would have to be undone). I think one would need to decide if they wish to commit to the swap or not.

Is Not just a "wiring problem"

Example: 87 Engine uses 700 Series TBI w/ Different Head & Intake that need gas pedal, TV & Cruise cables made to fit this.
Pic from Throttle cable cave page,

Top cable goes around pulley then connect to bell crank on 700 TBI
That cable has 2 "end" to engage the Pulley & TBI + has another end that hold jacket on the pulley bracket.
Need 2 "ends" because TV cable pulled by the Pulley.
If has Cruise, That uses the pulley too but has second pulley that pulls main pulley.
Worse, Throttle & Cruise Cable sets are made as 1 piece for 87. So when car don't have Cruise from Factory, Is Way Harder to add any Cruise later. In some later years the cables are made as separate parts & bracket slot is mod'ed to take them.

Even if you have 87 Fiero & Throttle cable breaks... much harder to fix because how it's made. Why I saved a cable set when someone else junked 87 w/ l4.
jelly2m8 OCT 15, 04:53 AM
yep, Like ogre says, it's more than just the Electronics / wiring harnesses, anything is possible with enough time and money, an 87 engine in an 84 is WAAAYYYYYY more than a temporary fix
82-T/A [At Work] OCT 15, 05:44 PM

quote
Originally posted by Daytonaspeed24:

i paid 300 CAD for the motor and 100 for gas. my 84 came with roller cam and roller lifters Vin R its like the 301000 built hahaha in 84 . where are you from.the only thing that is the same apparently from what i researched is the camshaft from 84 to 88 is the same.my rockers are non adjustable. I just wanted the motor to move the thing around while i sort out whats wrong with the one I had built. as this is a paid space not to many folks would want to help push it in the ice and snow from the parking into the shop. what would be cool is i have my 2.5 racing motor from my Daytona that would be cool to stuff in there but it wont work either. but it will work in a Rampage hahaha if i could find one.let me know where you are from and ill see if I can find a shipping quote
Dana




Hah, dude, I'm about as far away from you as possible while still being on the same continent. I'm in West-Central Florida in the U.S.

If you can ship it, I'm happy to pay what you paid and the shipping fee as long as the motor is complete (cyl head and block).


The 84s never came with a roller cam, but as part of the recall, most 84s had the engine swapped out, so that's likely how you got it. Roller-cam is definitely the way to go. I'm not sure what your financial situation is, but if you're looking to build out a Duke engine, the 87 is really the way to go (in my personal opinion).

The 88 has a balancing shaft, which is a nice feature because it helps improve the balance of the motor, but it's a one-year only thing. The 87 I suppose is also 1-year only, but there's no balance shaft. The nice thing about the 87 is that it's already set up for the crank and cam sensor, which can be waaay more accurate if you go with an aftermarket ECM. That of course allows it to use DIS ignition, which itself is a better improvement. The Duke isn't exactly a performance engine unless you go with Super Duty parts, but at least with the roller cam, DIS ignition, etc... it's got a bit more power. The cam NOT having to drive a distributor of course helps too. But the 87 is also designed with the newer brackets to allow you to use the newer A/C compressor and the newer alternator as well. So, just a few things to consider.

But to swap it in, you pretty much need everything. Did the engine come with the intake and exhaust manifold too?
Daytonaspeed24 OCT 16, 11:09 AM

quote
Originally posted by 82-T/A [At Work]:
Hah, dude, I'm about as far away from you as possible while still being on the same continent. I'm in West-Central Florida in the U.S.

If you can ship it, I'm happy to pay what you paid and the shipping fee as long as the motor is complete (cyl head and block).


The 84s never came with a roller cam, but as part of the recall, most 84s had the engine swapped out, so that's likely how you got it. Roller-cam is definitely the way to go. I'm not sure what your financial situation is, but if you're looking to build out a Duke engine, the 87 is really the way to go (in my personal opinion).

The 88 has a balancing shaft, which is a nice feature because it helps improve the balance of the motor, but it's a one-year only thing. The 87 I suppose is also 1-year only, but there's no balance shaft. The nice thing about the 87 is that it's already set up for the crank and cam sensor, which can be waaay more accurate if you go with an aftermarket ECM. That of course allows it to use DIS ignition, which itself is a better improvement. The Duke isn't exactly a performance engine unless you go with Super Duty parts, but at least with the roller cam, DIS ignition, etc... it's got a bit more power. The cam NOT having to drive a distributor of course helps too. But the 87 is also designed with the newer brackets to allow you to use the newer A/C compressor and the newer alternator as well. So, just a few things to consider.

But to swap it in, you pretty much need everything. Did the engine come with the intake and exhaust manifold too?


The engine is complete other than the throttle body wasnt attached . i already rebuilt my motor its not running right so the idea for the interim was to put a running motor in since i never got to see it in the daylight i didnt catch it and he didnt have a harness or ecm. already spent the money on a rebuild.
pm me your zip i am going tomorrow to wash it. and I just happen to have a crate to put it in. your Zip will help with a quote.
Thanks