Here is my 3.4L Pushrod swap. From a 95 Camaro to a 87 Fiero GT. I did a lot of cleaning and painting of everything. I posted 204 pics of the engine swap, parts as they were removed, cleaned, painted, powder coated, swaped, reassembled, etc.... If you need info about any bracket on the 2.8L/3.4L engine I should have a pic of it posted here. Also pics and info for stripping the old powdercoat off of the intake/valve covers, are posted here. And all of the info that I had to use in the swap.
Randye came in and added rebuild pics, for those of you who want to rebuild it first.
And I added pics of my rebuild with a turbo too.
If this thread has helped anyone please post comments at the end.
------------------ BTW lasvegasfieroclub.com is now lasvegasfieroclub.org '84 Fiero Sport Quad 4 coming soon '87 Blue GT 3.4L Swap Completed!!!!!!!! http://www.lasvegasfieroclub.org/ Rate me if I'm usefull
[This message has been edited by sardonyx247 (edited 09-10-2008).]
Can anyone see why I had low oil pressure??? these pics might be too small to see it.
Here is some background on my GT. I had aranged to buy it fairly cheap, Great body, engine sounded ok. He had trouble shifting and said the oil light was always on. He said he bleed the clutch system but the fluid was still black, so he just didn't do it right. The guy said when I was going to go pick it up that he would charge the battery. So I called him eqarly so hecould charge it, what I thought was to put it on a battery charger. Well he went driving to charge it. When I got there it now had a small knock/tapping sound. I figured it had a spun bearing from read through the posts. I thought no biggie, needs an engine. Well on the way home....WHAP WHAP WHAP, now it got LOUD. So I limped it home, and there it sat staring at me everyday. So I looked into engine swaps....a 2.8L $700, a 3.1L stroker kit $499, then I found a 3.4L for $400. The engine got bigger and the price kept going down. Well thats a no brainer on what I was going to do. So I went down and got the 3.4L and that is where the first set of pics starts, when we got it back to the shop.
Here are a few more of the 3.4L mostly striped down
This oil filter adapter needs to be removed, on the 2.8L there is a 10mm hex fitting inside that you have to transfer to the 3.4L block. Then the oil filter screws on to it. If you compare these to the first set you can see some of what you have to strip off the 3.4L, pretty much down to the heads(leave them on).
A couple of pics with the craddle supported and unbolted. An easy trick to getting the front craddle bolts out that I found is to take the nut off and push on the bolt then use a jack to slowly jack up then it will just fly out. The backs just lower down to the stands.
I used a chain hook to the trunk latch and a forklift to raise the back, with the craddle unbolted the back is much lighter.
I found that the back manifilod was cracked. Luckly we have alot of parts around
And I found that stock manifold has this crappy restriction in 2 of the ports.
After a quick porting job there are gone.
this might be good for a couple of horses, mabey.
Porting the exhaust manifolds is generally thought to be worth about 8-10 HP on a stock 2.8. It's one of the most common "free" mods.
One thing you need to do, though, is reinforce the welds on the outside of the manifolds where the port primary tubes come into the main manifold tube. (the joint you grinded on the inside). Otherwise, you risk cracking and leaking at the junctions where you ported.
so grinding down those little restrictions is good for about 10 hp on a 135hp engine? damn thats a 7% increase in power DAMN... can you take a better picture of the broken lifter so i can see what it looks like?
Here are the two flywheels. You need a neutraly balanced flywheel, The one for the '88 Fiero will work just fine. I got mine at Partsamerica.com for only $39.99 Just set 'your car' as an '88 Fiero V6 and look up and order the $39.99 flywheel( The part# is Standard Flywheels 6500 )with a $35 core You can order online and pick up at the store. Then take back your old flywheel the next day for the core.
The old '87 2.8L is on the left, The new ''88 2.8L flywheel is on the right. Notice the weight on the old one.
A side shot
2013 Edit to add: I don't think they have the flywheel at that price anymore. The Fiero Store now carries the 88 neutrally balanced flywheel needed for the 3.4 swap, at $59.95 Just FYI for everyone.
More pics while my powder coat in baking........ While the cover was off I decided to replace the seal. When they say "just pry it out with a small screwdriver" I had a hell of a time getting mine out But to put it in just use a block of wood and a hammer.
The old seal still in and first paint
old seal out, new one ready to go in
New seal in and the tools used
Yes I know the timing marks are upside down. I corrected this as you can see in other pics
[This message has been edited by sardonyx247 (edited 05-29-2004).]
If the 3.4L you get is an auto like mine was, and you have a stick, like mine is, you also need to get a PILOT BUSHING too.
No you don't. The Fiero doesn't use a pilot bushing. The transmission has an input shaft bearing built into it that supports the input shaft, so no pilot bushing is needed. If it makes you feel better to use one, go ahead. The input shaft will never reach it.
You also need to transfer timing marks from the 2.8 balancer to the 3.4 one. I lined up the groove on the inside by stacking them, I got a straight edge and scribed a new mark. Then I got a hacksaw and made a deeper groove you can see the smaller groove in this pic