90-96 gp 3.4 engine swap - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 07-02-2005, 11:48 AM   #11
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None do, particularly the 3.4(3400). Those things are greasy paperweights.
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Old 07-02-2005, 11:55 AM   #12
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Quote:
Originally Posted by willwren
None do, particularly the 3.4(3400). Those things are greasy paperweights.
I agree... The 3400 GA I drove had great pep, but even pedal to the metal felt a wee bit more fun in the bonneville... The 3800 seemed to pull a good bit harder... But in the GA that 3400 did a good job...

Even a family member with a 3400 montanna wishes it had the 3800 II that their bonneville has in it..

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Old 07-02-2005, 03:31 PM   #13
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Quote:
Originally Posted by BillBost37
It'* tough to believe any other smaller motors had the punch factor (torque) that the 3.8 built for our cars does.
if you're talking about non supercharged you're wrong. The DOHC 3.5 shortstar is more peppy in the low RPM'* and has better top end than the 3800.
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Old 07-03-2005, 01:23 AM   #14
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Quote:
Originally Posted by toastedoats
3.4s suck.
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Old 07-03-2005, 11:28 AM   #15
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The 3.4 can be a good engine... Has a really screwed up design...

But if you are the type of person that is die hard on keep up with the car, it can last...

I don't think too many people really spent the $$$ they should have on the upkeep of the 3.4... And on the same note I have not had the chance to rip one apart...


Yes that 3.5 is going to be pretty decent, 215 hp and 230 ft lbs attached to a 3.29 gear ratio... And DOHC at that.... Yes it will move...

It would have been interesting to see a buick 3800 turn into a 3800 Twin cam... I hope if GM decides to kill off the 3800 Pushrod engine that they will try to have an engine that will hold up as well as all of the 3800'* have...

we have begun to see the 3.5'* last and they seem to hold up pretty good... was it 99 that was the first year of production for the 3.5? I remember in 99 GM was talking about using the 3.5 Shortstar as the base engine for the Bonneville... But the 3800 remained..

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Old 07-03-2005, 11:33 AM   #16
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JR, what kind of lifespan have you seen on the 3.5?
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Old 07-03-2005, 11:36 AM   #17
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Quote:
Originally Posted by BillBost37
JR, what kind of lifespan have you seen on the 3.5?
So far I have heard of 100,000-150,000 miles.... But these motors are still sort of on the newer side... Hard to say... You nerver know we may see some at 200,000 to 300,000 in the future...

We need to get Custom88 to toss another 160,000 miles on his right quick...LOL... How about it Custom88, let go across country a whole bunch... Oh and can I drive

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Old 07-03-2005, 11:38 AM   #18
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Sounds like a plan...Custom...let'* go buddy...get driving. Just don't let JR near your seals on your car. Fishtank seems to be his new nickname

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Old 07-05-2005, 02:11 AM   #19
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The day I had bought my Bonne I was at a used car lot a few hours b4 hand and saw a nice looking Olds cutlass. It looked nice and in good shape & had that 3.4 in it. It had almost 80k on it but when I went to fire it up it was hard starting and when it did start it let out the biggest cloud of blue smoke. I laughed and gave the keys back to the lady from the car lot that was standing right there.

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Old 07-06-2005, 01:44 AM   #20
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I know most people here hate the 3.4 but I think its a good engine. The one in my 94 GTP has cost far less in repairs than the 3800 in my bonne and certainly loves to rev smoothly to its 6500 rpm redline. The only thing I've noticed is it does start harder than the 3.8. However, I agree that it would be a worthless swap, its actually bulkier than the 3800 and doesn't have the low end torque to move a bonneville.
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