Hi i was at the junk yard today and found this engine 3.5 L Dual cam I could see it was all aluminum is this a 60 degree engine or a 90 degree any one done a swap with this any info is helpfull I can get it for $200

so far I think it is what they called a short star 3/4 of a N*

Rickady88GT has had one of those installed for a while.
It's a dark blue 88 GT, if you want to search for it.

He swapped in the entire PCM and ECM and a lot of other stuff to make it work. (California swap.)

It appears to have been a lot of trouble, but it's a flawless install.

It' a 90 degree V6. As you said, it's 3/4 of a northstar.
Kind of like a 4.3 being 3/4 of a 350.

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Raydar
88 4.9 Formula IMSA Fasback..........................88 3.4 coupe -soon to be something other than red

Read Nealz Nuze! Praise the Lowered!

[This message has been edited by Raydar (edited 11-02-2008).]

How's your 3.4 DOHC rebuild coming along?

You ask how the rebuild is going it's on hold till i get some $ saved up and when i go to the junk yard I see a clean engine like this 3.5 for $200 about the same as a rering kit for the 3.4 DOHC engine but it seem to have some more potential pluse it is all together and all aluminum what one would you go with pluse you told me I should junk the 3.4

The 3.5 is NOT an easy swap. Engine management is a chore; unfortunately it wouldn't be very easy to do it with a manual transmission. If you use the automatic transmission it comes with, you're basically doing a Northstar swap; the engine is the same but only 6-cyl.

The 3.4 DOHC swap is easy and well documented.
I would get a 3.4 DOHC that's in good shape and do what is necessary to get it running. That block you have needs more than a re-ring kit..

? what if i used like a Holly 950 to run the engine and a 4t60 not the electronic controld trany. the 3.4 DOHC I have will need a bore job and new pistons like you said so that brings up the cost so that money could be used toward the 950 ECU

[This message has been edited by engine man (edited 11-02-2008).]

I don't think the Holley 950 can control those ignition modules.
You would also have to TUNE it.

how about the 7730 would that work on this engine I see alot of guys talking about that ECU

nothing can really provide the best results with the least amount of brain damage as on OEM ecm, regardless of tuning/burning/programing. Sure, you may have to change a few pins and mod a few wires, but they always provide the easiest install. And of course for us CA guys, aftermarket stand-alone ECM's just simply are not an option if we want smog legality.

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Recanizin' Flat-Buns Since 2001

Eric Nelson
Internet Sales Manager
Power Ford Valencia
nelsone@autonation.com

it looks like I will be doing a harness never done one but gona nerve racking for me gona try geting the engine next week end

See if ryan.hess can help you with the 7730 ecm. Unless you just want to use a manual, I think that engine would be well suited for either of the manual transmissions that come in the Fiero. No cutting the passenger side strut tower either. To be sure though, check Rickady88GT's install thread.

Yes i think it will fit better due to it being shorter and it should be stronger than the 3.4 DOHC engine and lighter all aluminum and i can pick it up for just $200

northstar fitment issues are not really due to length.

At one time Mechtech and CHARFAB both made aftermarket PCM's for the Short Star. Mechtech also had a 425 HP turbo version. I seem to remember that They used to advertise 600 HP? But that may be the difference between the single turbo and twin turbo setup? A quick search show Mechtech still lists the ShortStar on the website.
Mine is stock and wont put down numbers like that but I do love the way it sounds and feels.
GM severely detuned this engine in the Oldsmobile and "if" the after market were there for it I am sure this engine would be VERY widely used for engine swaps.





The ShortStar, 350 TPI L98 and stock 2.8 V6 side by side. The S* is big. It is just as wide as it is long. The 5 speed getrag will bolt up to it. I have done it, but never tried to run it without the stock 4T65E that it came with.


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[This message has been edited by Rickady88GT (edited 11-03-2008).]

quote Originally posted by darkhorizon: northstar fitment issues are not really due to length.

That statement is somewhat misleading... The v8 northstar does have fitment issues in both length and width. both are about the same amount of work to overcome unless you just like using a hammer on the strut tower and the cradle.

I don't think you can run that with the 7730. It has a completely different ignition system. There are integrated ignition modules in each bank. It does not use the 4-brick DIS block like the early Northstars do.
Was there an earlier 3.5 that had the old style DIS ignition like the 60* V6s?

The 3.5 is probably one of the more challenging swaps out there. It is coil on plug. there are aftermarket ECUs capable of running it, but they are >$1000. I'm not aware of anyone that has hacked the stock PCM, which means you have to find a way to keep it happy as if it never left the Olds. Rick probably has all those details, but I can only imagine it to be a pain.

It would probably be less work to install a 3.6 VVT and you'd have 50 more horses to boot.

If there was a 3.6 in the junk yard for $200 I would be all over it but this is in there and it is 200 so I think i will go for it and maybe if I save all my change i can get an aftermarket ECU hope it is there still on sunday i will hopfully get it out and home

The PCM is NO problem! it runs a Delphi PCM.

quote Originally posted by AJxtcman: The PCM is NO problem! it runs a Delphi PCM.

Do you have more info on this?

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The ECU is fully tunable, I have code ready for boost, manual, automatic, whatever. It wouldnt be ANY different than a 3800 swap, with a slight possibility that you need a passkey disable module..

It actually has been fully hacked for at least a year or 2 now.

[This message has been edited by darkhorizon (edited 01-06-2009).]

quote Originally posted by darkhorizon: The ECU is fully tunable, I have code ready for boost, manual, automatic, whatever. It wouldnt be ANY different than a 3800 swap, with a slight possibility that you need a passkey disable module.. It actually has been fully hacked for at least a year or 2 now.

REALLY? May I have more info please?

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quote Originally posted by Rickady88GT: REALLY? May I have more info please?

What sort of info are you looking for?

quote Originally posted by darkhorizon: What sort of info are you looking for?

Are you the one who does it? If so, how much to change it to manual trans and the typical performance tune? Trouble code deletes? etc... I have an extra computer that I always wanted to use for a modified 3.5 version.

Thanks

pm'd

quote Originally posted by Rickady88GT: Do you have more info on this?

I have all the stuff to tune this also.

Read this http://www.punk-ass.com/OSV.doc

Cool, I don't want to sound like an idiot, but the program you have is for the LX5 3.5 V6?
I have talked to a few people that said they could do it but when I sent my PCM they said they could not do the LX5.
So I hope you understand my reason for a double take