LS or SBC

Elliott · Jun 19, 2011

Are you replying in favor of old school blocks or new Ls style?

blacksheep10 · Jun 19, 2011

He disagreed at first, then agreed and backed up every point you made. LS motors are here to stay and WAY too cheap. I'm talking truck motors are way too cheap with way too much power potential

patooyee · Jun 19, 2011

Elliott said:
Are you replying in favor of old school blocks or new Ls style?

I interpreted as in favor for LS. And he's right. There is a reason the last production big block rolled off the lines a few years ago ... they don't need them any more. They're getting the same if not better numbers out of their current line of small blocks. They are currently getting more power out of them than needed in fact. (638hp production Corvettes than can go 205 mph.) With those kinds of results, who needs more?

That being said, I do have to say that the LS2 that is in my new rig is so vastly more complex and expensive to run than an old school SBC its amazing. After its all up and running I probably could have had one hell of a SBC crate engine. With the new engines its not just cost of initial purchase ... its the cost of the fuel system, plumbing, oil system, computer, programming, etc.

J. J.

Elliott · Jun 19, 2011

That's how I took it to , but what I was saying was in favor of Ls, so I am confused by his comments.

patooyee · Jun 19, 2011

Elliott said:
That's how I took it to , but what I was saying was in favor of Ls, so I am confused by his comments.

I understand him as saying, "No way possible can you beat the LS motors. In fact, they have MORE power potential than the old school engines."

J. J.

454tbacon · Jun 19, 2011

Just go buy you a corvette motor with 600 plus hp then see what you have in it after all is said and done .

Cole · Jun 19, 2011

My 6.0 doesn't make crazy HP but it does good and I know guys with SBC that have more in there fuel injection than I have in my entire running Engine.

Elliott · Jun 19, 2011

I still say half the people swearing to have 6-700 on up horsepower needs to put their **** on a dyno and get their feelings hurt.

zr2x350 · Jun 19, 2011

Elliott said:
Are you replying in favor of old school blocks or new Ls style?

I will never favor any old motor. The LS dominates.

musselman · Jun 19, 2011

Elliott said:
I still say half the people swearing to have 6-700 on up horsepower needs to put their **** on a dyno and get their feelings hurt.

Agreed

zr2x350 · Jun 19, 2011

I will have dyno numbers to back mine up soon. ;D

Elliott · Jun 19, 2011

Not trying to start **** by that, but I've been around race cars all my life and a 700 horse on gas motor is very hard to get without building a monster.You're not going to just bolt on a few things and have it.I've seen dynos hurt alot of feelings time and time again

musselman · Jun 19, 2011

Elliott said:
Not trying to start **** by that, but I've been around race cars all my life and a 700 horse on gas motor is very hard to get without building a monster.You're not going to just bolt on a few things and have it.I've seen dynos hurt alot of feelings time and time again

Right on

Let alone keeping 700 horse gas motor cool on the trail or a beat down

zr2x350 · Jun 19, 2011

All I am going to say is the only thing stock on mine is the crank. The springs will have to be changed annually though probably, but other than that it should hold up pretty well.

patooyee · Jun 19, 2011

454tbacon said:
Just go buy you a corvette motor with 600 plus hp then see what you have in it after all is said and done .

Meh ... build a SBC, or even a BBC, with 600 and you won't be far behind. The difference being that the 600 Corvette motor has billions of dollars of development and research behind it, gets 20+ mpg, will get 150,000+ miles, revs 1000 - 1500 rpm higher, and weighs 100 - 300 lbs less. You'll be able to rev the piss out of it comfortably, knowing that hundreds of engineers have done so before you whereas the SBC or BBC you'll never know for sure if its going to toss a rod out the side of the block because only you and maybe a few other dudes are running that exact combination. Yeah, some builders know what they're doing and have stellar reps, but none have the billions that GM put into the LS engines.

J. J.

zr2x350 · Jun 19, 2011

patooyee said:
Meh ... build a SBC, or even a BBC, with 600 and you won't be far behind. The difference being that the 600 Corvette motor has billions of dollars of development and research behind it, gets 20+ mpg, will get 150,000+ miles, revs 1000 - 1500 rpm higher, and weighs 100 - 300 lbs less. You'll be able to rev the piss out of it comfortably, knowing that hundreds of engineers have done so before you whereas the SBC or BBC you'll never know for sure if its going to toss a rod out the side of the block because only you and maybe a few other dudes are running that exact combination. Yeah, some builders know what they're doing and have stellar reps, but none have the billions that GM put into the LS engines.

J. J.

Couldnt be said any better.

tbacon38 · Jun 19, 2011

Still a personel preference , just my opinion i dont like to say run what I bought and hope I bought enough Im old school all the way, got two big blocks that are 4 bolt mains never slung a rod that will twist 8000 all day son, one has been running for about 10 years been in drag cars, mudracers, now in a rock buggy would put it aganist any ls motor out there, not trying to start **** but this is a opinion thead. COME ON

Elliott · Jun 19, 2011

8000 rpm in a big block is twisting the **** out of it. I don't know your setup but when that motor was in a drag car did it really need to turn that high?most race cars don't need to go over 7ooo. Your going to gave to move some serious air for it to be efficient . The pro stock trucks had to go up 5 mm on their cam cores back in the day, because they couldn't get control of their valves without using so much valve springs they were twisting the cams out of whack

patooyee · Jun 19, 2011

tbacon38 said:
Still a personel preference , just my opinion i dont like to say run what I bought and hope I bought enough Im old school all the way, got two big blocks that are 4 bolt mains never slung a rod that will twist 8000 all day son, one has been running for about 10 years been in drag cars, mudracers, now in a rock buggy would put it aganist any ls motor out there, not trying to start **** but this is a opinion thead. COME ON

Sounds like a decent motor. Must have not been cheap to build. I didn't mean to say that all big blocks eventually throw a rod or anything, I would think everyone realizes that. I don't have anything against big blocks. I was just pointing out some considerations that no one had to this point. Yet, the ***le of this thread is "LS or SBC," not "LS or BBC," which incidentally may be a more appropriate question. The reason BBC's came up is because LS engines are more akin to BBC's in terms of power than they are to SBC's. Hence the reason GM, as of Dec. 18, 2009, no longer makes a big block and they are therefore OBSOLETE.

J. J.

zr2x350 · Jun 19, 2011

They, as I stated before are outdated and underpowered stock vs. Stock.....As I said in my first post. Give it time, when the price eventually comes down on building ls motors, bbc's will be a memory.