[badassmonte]

i just called on a 3.4 today now what is the difference between them other than the injectors
and the guy said if i put a 3.4 in and used my injectors it would still be a 3.1 now can some one help me out with this

[jaybaum96]

displacement, reason why they are two different engines.

This post has been edited by jaybaum96: 12 May 2010 - 08:05 PM

[badassmonte]

jaybaum96, on 12 May 2010 - 08:04 PM, said:

displacement, reason why they are two different engines.

so is the bore or stroke different or both

[me6894]

Quote

and the guy said if i put a 3.4 in and used my injectors it would still be a 3.1

That guy is clearly an idiot.

[badassmonte]

i thought he was full of it cuz ive line my 03 monte i use to have and it had a 3.4 in it and my ls and the 03 smoked the ls fromm dig and a roll

[1996A-Z34]

DOHC much? The 3.1 and 3.8 are hella easier to work on than the 3.4. BUT the 3.4 will flat out kick both the 3.1 and 3.8s collective asses

[me6894]

1996A-Z34, on 12 May 2010 - 09:15 PM, said:

DOHC much? The 3.1 and 3.8 are hella easier to work on than the 3.4. BUT the 3.4 will flat out kick both the 3.1 and 3.8s collective asses

Pretty sure we're talking about differences between the 3100 and 3400, not 3.4 DOHC.

[badassmonte]

me6894, on 12 May 2010 - 08:23 PM, said:

1996A-Z34, on 12 May 2010 - 09:15 PM, said:

DOHC much? The 3.1 and 3.8 are hella easier to work on than the 3.4. BUT the 3.4 will flat out kick both the 3.1 and 3.8s collective asses

Pretty sure we're talking about differences between the 3100 and 3400, not 3.4 DOHC.

yes i was just wondering if that guy was full of sh*t or not

[1996A-Z34]

Fail

[Nick07]

1996A-Z34, on 12 May 2010 - 09:41 PM, said:

Fail

You sir need the double facepalm lol

[1996A-Z34]

[zipper778]

It's all good. When I see 3.4 I automatically think DOHC as well. That's why I try to make sure that I say 3100 and 3400 to be clear.

The 3100's bore is 89mm (3.5") and stroke is 84mm (3.3").

The 3400' bore is 92mm (3.6") and stroke is 84mm (3.3").

[badassmonte]

zipper778, on 13 May 2010 - 10:27 AM, said:

It's all good. When I see 3.4 I automatically think DOHC as well. That's why I try to make sure that I say 3100 and 3400 to be clear.

The 3100's bore is 89mm (3.5") and stroke is 84mm (3.3").

The 3400' bore is 92mm (3.6") and stroke is 84mm (3.3").

yea that was a dumb question by myself 3.4 to 3.1 duhhh 3mm bigger bore my bad but i understand the dohc deal that was also my bad i should have been more clear
so if i can find a 3.4 dohc for like 300 bucks i think im going to swap to it then when i move in june get a 3.8 sc and build it over time
one more question i cant see boring my 3.1 to a 3.4 and gain 20 hp out of it is that about the hp gain youll get

[Nick07]

So you are talkin about the 3400 or did you mean the DOHC? You threw me off on that last post of yours

[badassmonte]

i was just talking about just a 3.4

[Manitcor]

if you plan to eventually swap in a 3800 don't waste your time with a DOHC just stick with what you have now if it is running or swap for another 3x00 660 (either the 3100 or the 3400).

Injectors don't make a 3400 a 3100 magically however the 3100 stock injectors are rated lower than 3400 injectors. 3100 injectors work just fine on the 3400, you will see more power with that setup however to unlock what the 3400 really has you will need 3400 injectors and a tune to match.

[Nick07]

Manitcor, on 13 May 2010 - 01:17 PM, said:

if you plan to eventually swap in a 3800 don't waste your time with a DOHC just stick with what you have now if it is running or swap for another 3x00 660 (either the 3100 or the 3400).

Agreed most definately. It's not worth the trouble and the DOHC doesn't have much to offer verus a 3800. Just swap in a 3800 and go from there, until then just stick with the motor you got a save yer money