L67 swap?![]()
Most of these guys on the forum think that the 3.8 is the cat's meow, but take it from someone who has had a 98 GT, 2004 Impala LS 3.8, and a 2001 buick Lesabre with 3.8, and the 3.8 is no high performance engine by any means compared to true Hipo motors. With that said, the 3.1 is always looked down upon, but believe me with some very minor mods this motor is as good as a stock 3.8 (reference my comments above) with better mileage.
I have a 2001 GP SE 3.1 with 100,000 miles on the motor and recently put on GMPP exhaust (this system is a magnalfow 2.5 inch all stainless mufflers (duals), resonator, and 2.5 inch pipes but not advertised as such) with a U Bend delete. I was shocked at how much power the car has now-equivalent to the stock 3.8-no kidding-That comment pisses off all the 3.8 owners out there but true and fact!!!
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Don't even waste money on tb's and exhaust for the 3.1. You will be disappointed
Because it doesnt come from the factory with a supercharger and it has faulty gaskets...
and is totally ball less and a L67 can get BETTER mpg's if you keep your foot light. This dude is an idiot and compares 3.8's to big block chevys and thinks they should be a close match. Keep your 3.1 stock, replace your LIM gasket as often as possible and be happy with what ya got, then search for a GTP later
BTW, this guy also thinks his exhaust gave him 40 hp in his 3.1! Which is already underpowered by an L67 by 80 hp at the crank! Look it up! and about 95 torque. If you can get that kind of power out of your 3.1 without internals, good luck. Then at that point you have a time bomb that still can't hang with an L67, you'll blow every tranny you put on it, and then on top of that you wont get **** for gas mileage! Point for me....
Wrong! Have you done this mod to a 3.1, genius?
I am not comparing a 3.1 to a 3.8SC. The comparison is to a normally aspirated 3.8. They all have faulty intake gaskets, not just the 3.1's-incorrect information.
Not any less ball less than a 3.8 with 200-205 HP or even a 3.8SC with 240 HP-My Chrysler 300 with a 3.5L has 250 HP-Who is the idiot now?
Good job impressing high school kids.
I'm sure his mother will be impressed...