i thought the only dif was the bell housing

No, there is more to it than that.

uh oh... jnco your kidding me? please tell me more. thanks, mike in oklahoma

Yours vs Mine...

[This message has been edited by Jncomutt (edited 12-14-2010).]

it says f23 cast in the top of the case... hmmmm

Yeah, I wasn't saying it wasn't a F23, just that they redesigned the case more like an isuzu.

i wonder if they have simular internals

quote Originally posted by mera7: new 2010 f23 cobalt 287 getrag

What you posted is a picture of a GM Ecotec F35........



http://www.fastfieros.com/t...d_engine_install.htm

https://www.fiero.nl/forum/Forum3/HTML/000094.html

You say it has F23 castings on it?!!!

You bought the wrong transmission.

[This message has been edited by L67 (edited 12-12-2010).]

So, seeing the trans mount like that, and knowing that the F23 was not meant for the Fiero, how much fab is required to mount it to the cradle? Does the trans case have the same holes drilled/tapped for our mounts? Do you have to create some kind of new bracket to mount it up? any pics of this would also help. I need to see how differant they are from a 88-94 Getrag to see if the solid mounts used in my LS3 swap will work.

Thanks in advance.

Rob

quote Originally posted by qwikgta: Does the trans case have the same holes drilled/tapped for our mounts?

They don't appear to use the same holes or mounts, but here's the pictures from Roger Thelin

quote http://www.noidearecords.com/thelinsells/kits.html

quote Originally posted by L67: What you posted is a picture of a GM Ecotec F35........ You bought the wrong transmission.

Well look at that. That explains the "changed the case design" thought I was having earlier. Guess its not even the same one. Good catch.

thanks guys, good catch. i will go back tomorrow and tell them two of these are not correct. i just walked down to my shop and looked... one of them says f23 and the other two say f35 as you said l67. i didnt pay a whole lot of attention to them as they are strapped to a pallet and were loaded in the back of my shop truck. i looked at one of them before they put them on the pallet then i went back inside. they told me the other two were also f23's. my mistake for not verifying. i purchased a low mile 2009 used f23, the one i looked at, and 2 new 2010 f35's as we now know. good catch guys. i will rectify the problem in the morning. i dont know if they will have new f23's but if not ill just use the 2009 f23.

Might be a better idea to sell that F35 to a cobalt guy.. good chance there is (a) LSD in there.

k... problem fixed. i have 1 new f23 to a cobalt and one used f23 to a cobalt 4200 miles on it. and i have one 2002 cavalier f23 with 7000 miles on it to steal the bellhousing from.

quote Originally posted by mera7: k... problem fixed. i have 1 new f23 to a cobalt and one used f23 to a cobalt 4200 miles on it. and i have one 2002 cavalier f23 with 7000 miles on it to steal the bellhousing from.

Can you post pictures of both tranny without the bell housing and the Bells themselves

quote Originally posted by Jncomutt: .... To any one with an isuzu transmission. The 99 cavalier isuzu trans is pretty much a direct replacement trans for the isuzu in the fieros. Just a little tip most people don't know.

speedometer?

quote Originally posted by KurtAKX: speedometer?

Magnetic hall effect sensor. It won't work with OEM equipment without a conversion interface or newer PCM.

[This message has been edited by L67 (edited 12-13-2010).]

quote Originally posted by Kento: Can you post pictures of both tranny without the bell housing and the Bells themselves

when i get them tore apart i will post pics.

No. No Cobalt came with anything but the Ecotech. Why did you buy three? Spares? You need the bell housing of a late model Cavalier...

[This message has been edited by carbon (edited 12-13-2010).]

quote Originally posted by mera7: hello, quick question... does the 2010 f23 cobalt trans have the same bellhousing bolt pattern as a f40? EDIT; LET me clarify that a little more.. .same bolt pattern on engine side of bellhousing?

It has the same pattern as the F40 that was used with the turbo port injected Ecotec used in Saab 9-3's.

Pics, pics, pics please. Some of us are looking for some pics from all four sides. Looking at how to mount one of these in a stock cradle (88 for me).

Thanks in advance

Rob

the actual question is would a ls4 bolt up to the f23 in any variation? the cavalier 2.2 or 2.4 or cavalier 2.2 eco or the cobalt f23's? i have a ls4 on a pallet on the shelf.

quote Originally posted by mera7: the purpose of this questioning is if a ls4 just bolts up to any variant of the f23 that is a cheaper/stronger solution to drop a ls motor in a fiero without expensive adapter kits and so on since the f23 uses the getrag axles, flywheel, clutch, and cables can be made to work. since guru bolted his ls4 to a f40 i was hoping a ls4 would bolt to a f23. ls4's are fairly inexpensive to buy and f23's arent bad either. you likely could buy a complete ls4 package around 1000.00 to 1500.00 with harness and ecm. and a f23 ranges from 100.00 to 1000.00 depending on which one you buy. so theoretically a ls4/f23 package could go into a fiero for 2500.00ish. inexpensive in the ls into a fiero world. cheaper than a archie ls kit... sorry archie.

Are you failing to consider the necessity of mounting a starter?

i like guru's starter solution

correct me if im wrong but if a ls4 bolts up doesent that mean that all lsx motors will. i can see some really nasty builds in the future. fierox might want to watch his record

quote Originally posted by lonewolf_305: correct me if im wrong but if a ls4 bolts up doesent that mean that all lsx motors will.

No, it doesn't. The LS4 is the only FWD transverse variation of the LS series.

oh oh well. what did that come in

You've got a lot of reading/learning to do. Get to work.
Start here:
http://en.wikipedia.org/wiki/GM_LS_engine

For what it's worth, the most powerful Fiero's are using the turbo 3800 V6. It will take a lot of ingenuity for the LS guys to catch up. It all comes down to preference.

and a lot of money. i know the ls route is pricey thats y ive never really looked into them, but ive seen some impressive numbers out there. ive hered that the cast block can handle a good amount of boost. maby someday when i have a little more money ill have to play with one.

[This message has been edited by lonewolf_305 (edited 12-14-2010).]

i have a ls2, ls3, ls4, ls7, and a ls9 all on the shelf in the shop. i build custom race cars and upper end sports cars and we use the ls motors all the time. we have a customers car that has a ls7 in it with arp head studs, arp main studs, arp rod bolts, patriot stage 3 cam, patriot stage 3 heads, titanium valves, titanium retainers, copper head gaskets, all forged titanium bottom end... it runs twin k26 turbos on 7psi of boost and makes an incredible conservative 900hp in a street legal car. it would make more hp if he bumped the boost but we have told him it will cost big big $$$ if he boosts too much and blows the heads right off of it...lol its in a 1993 porsche 911 with the legendary porsche getrag g5052 twin turbo transaxle and porsche motorsports 80% lsd, trans will take around 1000ft lbs of torque. car makes serious hp but is serious $$$ too. so yes the ls motors are killer with the right combination of parts. i originally wanted to run a ls motor in my mera, but like many here on pff i was told if your running a getrag or isuzu youll just break the trans... i of coarse built the trans to take the most abuse it could. fiero 282 getrag trans case and 1-5 gearset, quad4 HO carrier and spider gears, ep lsd, cryoed everything, build a case girdle/cradle...so on, so on... but this is a very expensive route. the f23 gearbox is stronger, more refined, and a way cheaper alternative... thanks to all in this thread and other threads for bringing this f23 trans to light...

quote Originally posted by qwikgta: Pics, pics, pics please. Some of us are looking for some pics from all four sides. Looking at how to mount one of these in a stock cradle (88 for me). Thanks in advance Rob

Im not sure why you need more pics (which google would be happy to provide Im sure) It can be done in about 1000 ways its not like your going to fab the mounts then get the trans... get a trans then fab the mounts, they are about as easy as it gets to make all you need to make is the mount to trans metal bracket the stock getrag rubber mount portions can be reused, or poly if thats your bag. All youll need to make is a bracket no rubber or anything involved unless your not interested in keeping the stock mount portion.

Seems you may be overthinking it is all Im getting at. Also mines an 88 so the cradle isnt an issue.

quote Originally posted by lonewolf_305: ive hered that the cast block can handle a good amount of boost. maby someday when i have a little more money ill have to play with one.

I helped do a head job on a supercharged 5.3 LSx in a parking lot a couple of months ago. We did a complete tear down and reassembly in under 6 hours. They're really awesome engines, easy to work on, and have unbelievable power potential. The only drawback are the obstacles to overcome to get one in a Fiero, and then you're not left with much room for turbo's and charge pipes without cutting the trunk completely out - LS4 is a pretty tidy fit in comparison. That's why the 3800 is an absolute dream come true, it's a Buick LS with 2 less cylinders. Ok I'm done sidetracking a transmission thread, I just wanted make the point I wasn't dogging the LS.

quote Originally posted by L67: That's why the 3800 is an absolute dream come true, it's a Buick LS with 2 less cylinders.

And that's why you've had a 3.4TDC and a 2.0 Turbo?

Oh we got jokes.
We all make mistakes right? The TDC was a misinformed mistake, made many years ago. The 2.0 I can't get enough of, and was smart investment decision. Like I said, it all comes down to preference.