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View Full Version : Just picked up a 94 Firebird 3.4, what should I drop in?


FACE
05-21-2006, 11:50 PM
I recently picked up a 94 Firebird 3.4 for a price I couldn't refuse. It only has 30k miles on it, so it's practically new, but it's still a slug. :shrug:

I don't want to do the typical LT1/LS1 swap, I'm leaning towards a 3800 with some sort of forced induction. How much more complex is it to go from a 3.4 to 3.8. How much of a nightmare would it be to wire up?
TIA!
...rallyred
05-22-2006, 07:17 AM
just as complicated as the V8 swap... i don't think the drivetrains share anything, even transmission or fuel system.
Crispy
05-22-2006, 08:34 AM
I dunno man, if you're going to do a full swap I'd do a V8 swap. Then again I'm just learning about the 3800, and I know nothing about the 3.4. Maybe someone else can shed some light on options for your 3.4. I'd try to get as much out as could, if its worth it, since the motor has such low mileage.

Good luck bro.
hawgs
05-22-2006, 08:57 AM
It would be fun to find an old GN engine/turbo and swap that in. :D

An advantage of swapping a 3800 series 2 in is how cheap you can get the motor for compared to an LT1/LS1.
car audio dave
05-22-2006, 10:32 AM
if youre going through the trouble why not swap in an LS2? i havnt heard of too many of those.

btw congrats on the buy.
91Firebirdv6
05-29-2006, 12:56 AM
since the 3.4 is a 60 degree v6 swapping to a 90 degree v6 will require as much work as swapping a v8
KrisXpc
06-11-2006, 11:43 PM
if youre going through the trouble why not swap in an LS2? i havnt heard of too many of those.

btw congrats on the buy.

or you could do this :chug:



http://img149.imageshack.us/img149/3355/img03388dx.jpg

Can any one guess what this is?? :D
FACE
06-11-2006, 11:45 PM
or you could do this :chug:



http://img149.imageshack.us/img149/3355/img03388dx.jpg

Can any one guess what this is?? :DJudging by the intake manifold, either a LS2 or LS7.
KrisXpc
06-12-2006, 12:11 AM
Judging by the intake manifold, either a LS2 or LS7.

Ding Ding!!

http://img79.imageshack.us/img79/7831/img03375ob.jpg
sschoeffler
07-09-2006, 09:50 PM
Actually I have a 93 camaro. had a 3.4 slug in it. roasted the motor and dropped in a 3.8 Series 2. Heres what you will need to replace.
3.4 tranny will bolt up but you electronic crap wont work, neither will the speedo.
you will need a Y pipe for the 3.8 and a welder.
need the complete wiring harness
I would suggest getting a 1 piece driveshaft
all engine braces and mounts
throttle cables are different. I made a T bracket thing to work.
Also the kick down cable for the tranny (if auto) has to be rigged to work.
Mine never worked...lol
I am sure there is more but thats the major of it. I am just now putting a T5 in my origionally automatic car. lots of fun, not too hard tho, tranny is a PITA to stab, but you can do it for pretty cheap
sean_1017
07-10-2006, 12:06 AM
hey face if u drop in a new engine would u be up for selling the 3.4 u got i have a 95 firebird and im looking to drop in a new engine becuase the 3.4l thats in there now has almost 200k miles. get back to me pelase
FACE
07-10-2006, 08:37 AM
Thanks for the info SSchoeffler, I'll be sure to email you when I'm ready to do the swap.

Returned the PM Sean.
3800rs
07-10-2006, 08:12 PM
face coming over to the v6 boards now eh ?
FACE
07-10-2006, 08:29 PM
face coming over to the v6 boards now eh ?Trying to cover all bases. ;)
GT Jon
07-13-2006, 12:49 AM
I was just thinking about this:
How about a 3400 top end swap, and some FI added to that? I've been wondering how that would turn out...
chadder
07-13-2006, 12:56 AM
572 Rat motor.


/thread.
FACE
07-13-2006, 01:02 AM
I was just thinking about this:
How about a 3400 top end swap, and some FI added to that? I've been wondering how that would turn out...No thanks. Too much work to still have a anemic bottom end.
FACE
07-13-2006, 01:03 AM
572 Rat motor.Bah, too old school for me. Belongs in a 60's or 70's car, or a boat!
chadder
07-13-2006, 01:06 AM
Yeah, since they made 572's back in the day :rolleyes: 600+hp on a completely 'stock' (albeit race) motor is extraordinarily badass.
GT Jon
07-13-2006, 01:08 AM
No thanks. Too much work to still have a anemic bottom end.
Well, you said you were looking for something different. That would be it. ;)

You can wait for ZZP to release the L36 Aluminum heads and build a wicked top end from there on the 3800 SII.
FACE
07-13-2006, 01:13 AM
Yeah, since they made 572's back in the day :rolleyes: 600+hp on a completely 'stock' (albeit race) motor is extraordinarily badass.When I think 572, I think big block. It's been a LONG TIME since GM put a big block in anything besides a truck, hence my association with era I mentioned.

Besides, I'd rather have setup that'll still get 15+mpg, is somewhat unique, and will not add a few hundred pounds to the front end.
FACE
07-13-2006, 01:13 AM
You can wait for ZZP to release the L36 Aluminum heads and build a wicked top end from there on the 3800 SII.
My thoughts exactly! :D
chadder
07-13-2006, 01:25 AM
When I think 572, I think big block. It's been a LONG TIME since GM put a big block in anything besides a truck, hence my association with era I mentioned.

Besides, I'd rather have setup that'll still get 15+mpg, is somewhat unique, and will not add a few hundred pounds to the front end.


That is true. It is a big block, hence 'rat'.