Ws6--->ls6?

**jag42420** · 10-16-2006, 12:55 PM

LS1 and LS6 are both generation III 5.7L small block 350s with different heads and blocks. There is not much of a difference in what they would do with the same heads & mods. The LS2 is a generation IV 6.0L small block. The LS7 (If you have $15k) is a 7.0L 427ci small block.

There is no replacement for displacement. Torque is acceleration, and torque comes easier from larger motors. Don't waste your money on a LS6, upgrade the LS1. It's cheaper to get more power per dollar that way. If you want a larger powerplant that will deliver more torque, get a larger motor instead of investing in a LS1. Speed costs money. A big block 502 is cheaper than a LS7, and will deliver more power.

As I said before, you have to know what you want before you start. How much money you are willing to spend will decide how fast you can go. You can pull a hell of a lot of power out of a LS1 for less than the cost of a new motor, without the headaches of trying to work in a bigger motor or tuning one in. If you have no mechanical experience and can't do the work yourself, you'll spend a fortune swapping motors. I suggest building up the LS1 slowly and saving your money. Street machines and track machines are completely different animals.

**jag42420** · 10-16-2006, 01:14 PM

Originally Posted by TransDreamer

i mean is there a big dif in the 346cc and 401cc? would i get good gains?

Power is about volumetric efficiency. Generically speaking, a modded 350ci motor that yields 350HP at the crank is 100% efficient (350HP/350ci = 100%). You can apply the same heads, cam, and mods to a 400ci motor, and you'd expect to get about 400HP at the crank. Stock motors are generally less than 100% efficient. A 280HP 350ci motor is only 80% efficient (280HP/350ci = 80%). Apply the same setup to a 400ci motor and you'd get 320HP (because 320 is 80% of 400). Again, this is assuming the same intake, exhaust, heads, cam, etc are used on both motors.

I grew up in a machine shop. My family has rebuilt motors since 1968. My advice? Spend your money modding the LS1, and learn to drive it as the power level increases. At 16, you don't know the feel of power yet, or how to handle it. You'll learn as you go, as everyone does. Start with small simple upgrades, like the air box lid and cat back exhaust. They add real power to the ground, and will work with whatever setup you choose. Use this site for info as you progress.

**TransDreamer** · 10-16-2006, 01:48 PM

ls1 moded vs ls2 moded

who wins? ----->

the anwser will be my goal in engines....

**jag42420** · 10-16-2006, 02:37 PM

LS2 vs LS1, the LS2 has larger displacement and will make more power assuming equivalent mods. But you could mod the LS1 and add a supercharger for about the same price as the LS2 swap would cost and get even more power for the same money.

**Mr. Luos** · 10-16-2006, 02:43 PM

402ci = small block
ANY LSx is a small block.

**oneBADDz** · 10-16-2006, 02:50 PM

Originally Posted by Mr. Luos

402ci = small block
ANY LSx is a small block.

That's what I thought, I knew the 6 liter was, I wasn't 100% positive on the LS7 though

**Mr. Luos** · 10-16-2006, 03:40 PM

To the untrained eye...The LS7 block would look almost exactly the same as the LS1 block.

**shady milkman** · 10-16-2006, 04:14 PM

now granted yes the ls1 is plenty fast for a 16 year old..but he didn't ask everyone for their tips on driving advise. he asked a simple Tech. question and got abunch of bullshit about only being 16. i hate when i hear people say shit like your only 16..i know 16 year olds that are better drivers then 20+. but go with Ls2 swap buddy, 6.0l sounds tasty, and then mod the hell out of it. and you'll have one fast sob

**TransDreamer** · 10-16-2006, 05:00 PM

bout time someone said that lol

i can understand the concern for me being only 16, but he said it perfect... it was just a tech question

**acrylicophobia** · 10-16-2006, 05:52 PM

But you don't listen. You say money is an object, yet you keep asking people to tell you how to go the absolute most expensive route for the same horsepower. Don't dismiss people's opinions just because they don't agree with you and they aren't telling you what you want to hear. Like they have said, plan out exactly what you plan to do with this car and what your plans are, then you can start looking at what to do concerning the engine. You can't drive a drag car on the street. And the more power you get out of the engine, the more you're gonna have to spend upgrading the transmission and the rear axle/differential, and the suspension, and on and on.

Obviously you want to get a lot of horsepower, and that's understandable, but look at how you want to drive the car, and take that into consideration when you're planning your project. I have an old muscle car that I'm restoring, and when I started on it about three years ago, 400 hp at the flywheel sounded really great. But, after spending as much money as I did on the motor, still not having the car on the road due to a lack of money, and also knowing that just cruising, I'll never use the engine to its full potential, I wish I had built a more modest engine and put some of that money into the suspension and braking systems, the interior, and maybe even started saving for the paint job.

Just sit down, think of what your plans are for the car, how you plan to use it, and go from there.

**03regency** · 10-17-2006, 11:18 AM

ls1 is all the motor you'll need. like everyone else is saying just do some head work, cam it, put some b/a exhaust and forget the ls6. the ls1 is freakin legit man. keep it!

**NvyBluMtlc02WS6** · 10-17-2006, 08:14 PM

No, I don't think you are reading what everyone is telling you. fbody said that you would be putting down 410 rear wheel horsepower with a set of heads and a cam. the ls6 has 405 at the flywheel which is approx equivalent to 350 horsepower at the rear wheels. that's a loss of 60 horsepower if you go with a ls6. stick with the ls1, save money and buy a set of heads!

**NvyBluMtlc02WS6** · 10-17-2006, 08:20 PM

Originally Posted by TransDreamer

Ok, i think i get it

Ls1 with new heads and cams would be faster than an ls6

Ls6 with same headers and cams as Ls1 would be almost equal.

If that is what your saying, then is there any other engine to put in an ws6... like would an Ls2 be worth it with the 6.0l engine?

First off, there is only one cam, and headers and heads are two different things.

**NvyBluMtlc02WS6** · 10-17-2006, 08:21 PM

Really starting to scare me.

**oneBADDz** · 10-17-2006, 08:37 PM

I don't think you understand that it has to be the baddest car it can be in order to be the baddest car on the street. Yeah Luos can whoop my ass, but I will still whoop almost ANYTHING that comes across me on the street. Hell, I can spray and beat Luos

( I know you like it when we talk about you man, and everyone sings your praises so I'm gonna talk some shit)

2000pontiac6 · 10-18-2006, 07:53 AM

Originally Posted by shady milkman

now granted yes the ls1 is plenty fast for a 16 year old..but he didn't ask everyone for their tips on driving advise. he asked a simple Tech. question and got abunch of bullshit about only being 16. i hate when i hear people say shit like your only 16..i know 16 year olds that are better drivers then 20+. but go with Ls2 swap buddy, 6.0l sounds tasty, and then mod the hell out of it. and you'll have one fast sob

He doesnt even have an LS1 yet let alone been in a car with one... Plans on getting a loan to buy one as stated in another thread. None of these $ mods are practical. Most of these practical for people that have a decent job let alone a 16 yr old getting a loan just to start. All this thread did was get people frustrated and waste their time

Originally Posted by NvyBluMtlc02WS6

Really starting to scare me.

I agree

**shady milkman** · 10-18-2006, 08:54 AM

Originally Posted by 2000pontiac6

He doesnt even have an LS1 yet let alone been in a car with one... Plans on getting a loan to buy one as stated in another thread. None of these $ mods are practical. Most of these practical for people that have a decent job let alone a 16 yr old getting a loan just to start. All this thread did was get people frustrated and waste their time

I agree

why would it frustrate people..and even if it did..then don't post. this isnt chicken soup for the teenage driver soul...if it frustrates people dont post..like i said it was a tech question simple as that..so why post anything but a tech answer..thats all i'm trying to say. he wanted a answer..and he got some answers but alot of bullshit.

**EStealth** · 10-18-2006, 08:59 AM

Originally Posted by jag42420

LS1 and LS6 are both generation III 5.7L small block 350s with different heads and blocks. There is not much of a difference in what they would do with the same heads & mods. The LS2 is a generation IV 6.0L small block. The LS7 (If you have $15k) is a 7.0L 427ci small block.

There is no replacement for displacement. Torque is acceleration, and torque comes easier from larger motors. Don't waste your money on a LS6, upgrade the LS1. It's cheaper to get more power per dollar that way. If you want a larger powerplant that will deliver more torque, get a larger motor instead of investing in a LS1. Speed costs money. A big block 502 is cheaper than a LS7, and will deliver more power.

As I said before, you have to know what you want before you start. How much money you are willing to spend will decide how fast you can go. You can pull a hell of a lot of power out of a LS1 for less than the cost of a new motor, without the headaches of trying to work in a bigger motor or tuning one in. If you have no mechanical experience and can't do the work yourself, you'll spend a fortune swapping motors. I suggest building up the LS1 slowly and saving your money. Street machines and track machines are completely different animals.

How much HP & Torque does the LS7 put down compared to the LS2? (crank and rwhp?)