DodgeIntrepid.Net Forums banner

1 - 20 of 28 Posts

·
Registered
Joined
·
49 Posts
Discussion Starter #1
Hi again guys, as i said in my previous thread the 2.7 in my 2004 intrepid ia dead. Right now the mechanic gave me two engine choices, either a 3.2 from a 04 intrepid or a 3.5 from a 00 300m. Which one should i go for? Obviously i want as much power as possible, but he keeps insisting that the 3.2 from the same year intrepid is a better choice. Please help me out here.
 

·
That rhythm is INFECTIOUS.
Joined
·
18,595 Posts
The 3.2l was discontinued in 2001. All 02+ got the 2.7 or one of two 3.5's - one "HO" model for the premium trim levels, and a 'regular' 3.5 model for the rest.

To put an engine from 2000 into your 2004, there are a number of things that need to be changed in order to work with the 2004 wiring and such.
 

·
Registered
Joined
·
49 Posts
Discussion Starter #3
The 3.2l was discontinued in 2001. All 02+ got the 2.7 or one of two 3.5's - one "HO" model for the premium trim levels, and a 'regular' 3.5 model for the rest.

To put an engine from 2000 into your 2004, there are a number of things that need to be changed in order to work with the 2004 wiring and such.
Thanks for the reply, he said he'd take care of installation including everything.
 

·
Premium Member
Joined
·
16,626 Posts
Thanks for the reply, he said he'd take care of installation including everything.
I can't tell if you realize what extra stuff would be needed to use the '00 3.5 in your 2004 that MrBigE was getting at. Your mech. would have to locate a 3.2/3.5 flex plate (flywheel), cam sprockets, and harness to swap out on the '00 engine. That may be behind your mechanic's comments too. Just expect to pay extra for his having to dig up that stuff and do the work. Better to find a later 3.5 if you decide you want a 3.5, or be ready to pay extra to convert the earlier one. Or perhaps your mech. has already also identified a later scrap 3.2 or 3.5 that he can get the needed items off of, so he won't have to hurt you too bad to go that route.
 

·
Registered
Joined
·
49 Posts
Discussion Starter #8
I can't tell if you realize what extra stuff would be needed to use the '00 3.5 in your 2004 that MrBigE was getting at. Your mech. would have to locate a 3.2/3.5 flex plate (flywheel), cam sprockets, and harness to swap out on the '00 engine. That may be behind your mechanic's comments too. Just expect to pay extra for his having to dig up that stuff and do the work. Better to find a later 3.5 if you decide you want a 3.5, or be ready to pay extra to convert the earlier one. Or perhaps your mech. has already also identified a later scrap 3.2 or 3.5 that he can get the needed items off of, so he won't have to hurt you too bad to go that route.
That is most probably what he has done as he gave me the same price for both options.
 

·
Registered
Joined
·
529 Posts
I see a lot of blown 3.5 s in the yards around me! I put Bosch III 4 hole injectors in my 3.2 and have broke the tires loose at 30 mph!
 

·
Registered
Joined
·
49 Posts
Discussion Starter #12
Guys, visually speaking could a bad mechanic, which my mechanic is, tell a difference between a 3.2 and a 3.5 engine. He gave me a call today saying that he'll put a 3.2 from a 2004 intrepid model, which I now know doesn't exist. So is he a ****ing liar or actually dumb enough not to tell the difference between a 3.2 and a 3.5?
 

·
Premium Member
Joined
·
16,626 Posts
Maybe it's a transplant?

They are the same engine - only difference is cylinder bore. But the intake plenum label says 3.2 or 3.5.
 

·
Registered
Joined
·
49 Posts
Discussion Starter #15
Maybe it's a transplant?

They are the same engine - only difference is cylinder bore. But the intake plenum label says 3.2 or 3.5.
If it's a 3.2 then it probably is. I know about the label but it was torn off when I looked at the engine itself. From the performance standpoint if it is a 3.2, will I be disappointed after driving a 2.7?
 

·
Registered
Joined
·
738 Posts
Nope. Never driven a 3.2 personally but it's the same motor besides the bore as mentioned, the PCM tunning differences from 01 to 02 and later years make all the more of a difference.

If you're going to retain the 2.7 transmission's final drive gearing you'll notice an enormous difference after anyway.

I'll leave it at this, I came home yesterday with a 2012 Penstar V6 Charger, took my girlfriend for a drive and she instantly said "it feels less powerful than your car"... Despite the Penstar being a 300HP engine advertised, my 3.5 with a few mods including that gear swap felt like a Hemi by comparison.
 

·
Registered
Joined
·
258 Posts
If you got the 3.2, I think you will be happy. My favorite engine has been the 3.2 in the '99 Intrepid. Can't really tell much difference in power from the 3.5, and the gas mileage is much better in the 3.2. Not sure why it should be so different, but we average about 24.5 MPG in the 3.2 and just over 21 MPG in the 3.5 (300M). Good luck!
 

·
Registered
Joined
·
49 Posts
Discussion Starter #18
Thanks for the replies guys I appreciate it. My mechanic just called me and said that he put the new engine in just fine but it won't rev more then 4000 I think was what he said. Has anyone dealt with this after an engine swap? Initially he put in the 300m 3.5 which did this, they he put in the 3.2 which did the same thing, he's calling an electric to take a look tomorrow, but has anyone dealt with this kind of issue ?
 

·
Registered
Joined
·
738 Posts
More than 4000? Why the hell is he reving it to 4000 - hope it's not cold when he's doing that... Jeez

This should be common knowledge for a mechanic. All new engines use a crank and a cam sensor for timing of the ignition and fuel. On these motors, the crank sensor control from start to 2500RPM, past 2500RPM it becomes dependant on the cam sensor. At which case the engine won't rev out and bounce off and back the mark. So in the event if you have an engine that won't start but cranks, the crank sensor can be at fault.

Adjustment can likely save the situation, worst case replace the sensor. Bit of a pain to get at, as you'll need to remove the upper plenum, you'll see it on the drivers side timing belt housing.
 

·
Premium Member
Joined
·
16,626 Posts
If it's a 3.2 then it probably is. I know about the label but it was torn off when I looked at the engine itself. From the performance standpoint if it is a 3.2, will I be disappointed after driving a 2.7?
As a present owner of a stock 2.7 and a stock 3.2, I would say that the 3.2 won't disappoint even with the taller gears. With the 2.7 gearing, you should definitely find it adequate.
 
1 - 20 of 28 Posts
Top