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[Tdunk]

I'm not looking at it any other way i was planning on upgrading the 3500 lol. I didnt expect it to produce that much stock. I was planning on buying one then getting a regrinded cam, then ported UIM,LIM, and 65mm tb. I'll install a CAI to the TB. Then i'll put on a CBE just to make sure air flow is nice. Perhaps a new set of heads all though that would be expensive. I just need to know if the 3500 will be the engine of choice over a 3400?

[Superdave]

I'm right in the middle of a 3500 swap into a Jbody, mounting is the easy part...

you'll have to swap over to larger injectors (atleast #19, preferably #24) and use the old 3100 fuel rail. your old exhaust manifolds will bolt back on the 3500 heads just fine. The Cam sensor may have to be spliced into.. no biggie there. then there is the external CPS. Hopefully it clears the subframe (dosen't in Jbody). you'll need a 65mm TB and adapter from the store here and that should be about it.

it will run horribly lean on the 3100 code, tuning is a must. but youre looking at a jump from 175 Crank HP to over 200.. and more torque too.

If you want more power then you'll be looking at a bigger cam, port work, headers and upgrading a few other things.. I'm expecting over 300 HP @ the crank with mine.. of course it's a 5 speed and won't be very streetable due to the cam. but it's not a DD so it dosen't bother me.

[bszopi]

250-300hp somewhere in that range because newer cars have engines with that much power.

Newer cars that have that much HP have engines that are pretty technically advanced for a V6, and are usually DOHC, VVT, etc. Oh, and they are usually in some of the more luxury or performance vehicles, not your everyday driver. Don't expect to get that kind of power by just swapping in a different engine. No GM engine that will easily swap into your car will be near that HP without a decent amount of $$ dropped into it. I don't want to discourage you, but I think you are looking at all of this the wrong way...

[Tdunk]

okay so the 3500 would be the best for this then right? Ben i'd like your opinion to.

[gectek]

almost all the gm j, n, and w bodies w/ the 2.8,3.1,3.4, 3400 would see sig upgrades w the 3500 and easier install than any of the other newer v6s, ie 3900, 3.6l, 3.8l

[Tdunk]

Yea i have, but ive been told the 3500 is not the best engine to go with for my car. So i dont know. I would have thought the 3500 would be better to build up because of better flow then again maybe not. Right now i just want a nicely powerful car. 250-300hp somewhere in that range because newer cars have engines with that much power. So i'll ask again what engine would be the best for this?

[SappySE107]

There are plenty of people here that know what they are talking about. You should probably work on understanding the basics for engine performance.

[Tdunk]

Yea i know ben. Just well after talking to someone i guess i can only talk to you and this person because i guess you 2 are the only ones that know anything. Aparently i dont listen to people.

[SappySE107]

What time frame are you looking at for doing this type of stuff to your car? If its not any time soon, I wouldn't think too hard on it. You will have more options as time goes by.

[El_Diablo]

first off, the 3500 will deffinetly run better with the 65mm TB as opposed to the 56mm unit or 62mm ported TB

you dont need to change PCM's, just tunes... it'll need a lot more fuel and honestly for Marks service your looking at prolly something like $300 atleast for a full tune, the dealership wont flash the 3500 program on to your PCM and even if they did it wouldn't help you at all and the 3500 will run dangerously lean on your current tune and run like shit if you dont fry a piston first


for rotors just get a stock replacement (you will need new pads if you replace your rotors) unless your ready to invest in a big brake upgrade

as for when you put rotors on, you dont need new rotors to put wheels on, the only time you need new rotors is if yours are either warn down or warped to shit

[Tdunk]

Well lol i think i'm going to get the rims theyre 17in and 5lbs lighter than the steelies. I did try and talk about this on UM, but aparently all my posts disappepar ow well. So should i wait to put them on before or after i get new rotors and does anyone have any suggestions for rotors? Its generally really rainy here.

[gectek]

shouldnt cause any probs that i know of, the only thing you wouldnt need for an upgrade would be the adjustable Fuel press reg, you can use the stock one as far as i know. if you have an questions then i would get a 3400 comp from another car like urs and use that to tune with. shouldnt cost too much. you can use your stock tb, or one from a 3400, but it would hurt perf really because of the lip on the TB adapter, so thats why i would use the one from the 60* store, or you could get a good used ported 3400 tb, that would be better, but you would still have to use the bracket

[Tdunk]

Umm well if i drop the 3500 in right off the bat i wont upgrade it. So then if i dont upgrade it what would i need to install it? Also uh i have a 3100 SFI so is this gonna cause problems?

[gectek]

• ok FPR is fuel pressure regualtor, umm let me see here is the adapter...http://60degreev6.com/store/index.ph...d&productId=61
• here is the regulator...http://60degreev6.com/store/index.ph...d&productId=65
• here is the crank trigger(the $120 part you refer to) http://60degreev6.com/store/index.ph...d&productId=42
• here is the TB adapter http://60degreev6.com/store/index.ph...d&productId=30
• and i think that sappy mentioned that you need the phenolic spacers to kinda make the fuel press reg work on the 3500 http://60degreev6.com/store/index.ph...d&productId=51(they are a good idea anyway, and may be able to be ordered thicker than 1/2 inch i heard)
• and the 65mm TB http://60degreev6.com/store/index.ph...d&productId=24 , i think thats it really, good quality pieces, and a good upgrade anyway.

you dont need the adjustable fuel press reg, but i think its a good idea anyway

[Tdunk]

okay spell out the 3 letter words please lol and link to the products haha.