200hp???

[WickedGT]

Hi all, just like to say hi, being a noob hey and all. NEways, I heard that one of the Pontiac Montanas came with a 200hp 3400 SFI engine. I am planning to swap my 3100 with a 3400 and since it can be done without too much trouble, I would like to do it with the most powerful one of them all. Can someone give me the skinny on this? Any info will help. Thanks ppl :D

[jazzman]

the most hp out of a stock 3400 is 185. That is the same engine used in the Aztec. I just aquired one of those engines and will be doing the swap later this summer.

Can't wait.

[USMCspy]

I was snooping around for crazy mods, and I came across the 3.5L DOHC 24V V6 for the Olds Intrigue, if I remeber correct it was a 285Hp beauty. I might be way off base, but that would be a cool mod.

If you are pulling the Engine out of the Aztek you might as well get it from an AWD one and get the Tranny and everything for it so you can do an AWD mod if you want. I was estimated at $4K for and AWD mod for my 2000 SE2

[Themeneea]

why does the aztec have 185 and we have 179 for the same engine

[ramairgt1]

Originally posted by Themeneea
why does the aztec have 185 and we have 179 for the same engine

last time i checked the SE only has 170 for the 3.4
The GT has 175

[Prospeeder]

yea, 175, and whats with the 3400 having only 12 Valves and a 3.0 for taurus has 24 vaulve, and my sisters little Plymouth laser having 12 vaulve, and my friends 95 ford contour thats slow with 16 vaulves, is that nothing to care about or what, or did i hear wrong?

['01GT]

There's a 3.4 DOHC rated for 215hp.

[navybluese00]

If I remember correctly, though, the DOHC 3.4 is based off the 3100 V6. It's just that with DOHC, the output is bumped up to 3.4 litres. I think it was also twin dual overhead cams. It was used in 91-96 Grand Prix, Lumina, Cutlass, and 95-98 Monte Carlos.

[RocketFast321]

i believe the 3.4 twin dual cam is it's own design. Example it has a timing belt not a chain

[mthegodfather]

For the price of changing powerplants you could improve yours to alot more power than 200HP.

[voyager]

how's he going to get his 155hp 3100 up to 200hp?

well, maybe he could. exhaust, intake, pulley, a P&P'd 3400 top end, TB and headers.. and then all that stuff would transfer to a nearly identical 3400.

.. i'm not swapping engines until i need a repair that costs as much as an engine. the +15 or so HP is great, but the practically new engine is the best part, considering i have over 160k miles on my current machine now.

if you could do the swap yourself and save labour cost, you could get a low mileage 3400 in your car for $600 or so. that's less than all the other mods i listed.

the reason the aztec and the minivans are listed at 185hp and the cars at 170 - 180hp is differences in intake and exhaust ( example: GAGT vs. GASE ) and the fact that hp ratings are averages; people naturally want more power in a heavy vehicle like a van, so GM quotes bigger #'s for them. all 3400's are identical.

"twin dual overhead cams" is redundant. the DOHC 3.4 has 4 cams, two over each line of cylinders. it's a totally different engine than the 3100/3400, which are practically the same. the 3.4 doesn't fit in your car and would be a big PITA to work on even in a W-body, but it is a nice engine that responds well to mods.

that intrigue engine is nice too.. but the 3400 is almost a direct swap, and any 3100 bolt-ons are immediately transferrable ( unless you've got a chrome spinnaz redline performance EGR :lol: ).

[Colin]

Originally posted by voyager
how's he going to get his 155hp 3100 up to 200hp?
A 50 shot of nitrous .
unless you've got a chrome spinnaz redline performance EGR :lol: :jaw:

[Pte Socks]

Bascially put, the UIM form teh Aztek flows better as well as a few other minor ajustments. Besides that, same engine mano.

[voyager]

i assume by "UIM" you mean upper intake manifold...

aztec part #: 24507501 (upper)

alero part #: 24507501 (upper)

grand am part #: 24507501 (upper)

they are all the same. the actual air filter box and the exhaust piping is different, but the engine itself is the same for all 3400's, except the AWD aztec; it won't bolt up.

[Colin]

Originally posted by voyager
the actual air filter box and the exhaust piping is different, but the engine itself is the same for all 3400's Less restrictive exhaust and intake that's what makes the difference .

[stevenr2185]

So lets say I was going to get a 3400 for a swap. YOu guys are saying that all 3400 are the same so I can get one out of any car? Because if there is one that is better than others I want that one... I saw on a swap guide that I should get one out of a van if I want to do the swap. why...? I plan on doing this maybe on winter break. Hope it goes well...

[robry]

I thought it was the PCM tuning that made the 10 hp different. The 3400 v6 in my parents transport seems to make power/torque a lot differently. When you drive it, it spends most of its time around 3-4 grand. It just feels different.

[voyager]

IIRC the minivans are the only ones that have threaded heater cores, like the 3100's do. isn't that right..?

sitting at 3-4000rpms as opposed to 2500 - 3500 is a difference in transmissions, not power output. ECM tuning is different though, you're right. most people that are swapping engines aren't swapping wiring harness's and ECU's along with them though.

[robry]

yeah the tranny is the same as the one in the SE, as far as gearing. it shifts out of 1st at like 45~. so the 3.05 gearing vs the GT's 3.29 final drive.

[BlackJack]

old thread?

[Bjornboy81]

....yes

:D