sslateron

It's hard to improve on perfection, just how much better is the LS2?

SweetS10V8

iTrader: (4)

How much better than what?

JDMC5

iTrader: (3)

haha, riiiiight. Of course the ls2 is better...

sean058621

iTrader: (2)

vs. the ls1????


stock for stock the ls2 is obviously superior

sslateron

lol, like totally!!! It's obviously better, but by how much, 50 whp? RPM range?

Pwebbz28

iTrader: (31)

For the most part they are about 20-30 rwhp up on a LS1 given the same mods

SweetS10V8

iTrader: (4)

It just has a .100" bigger bore, better heads, and slightly better camshaft.

ringram

90mm throttle too!
Intake is not as good though.
Plus compression is higher on the LS2 as well.

slow

iTrader: (7)

My 1998 WS6 with longtubes and ls6 intake and quick airfuel only tune, compared to my 2006 ls2 GTO with a quick 10 minute tune.

Ryan

Jon@Texas-Speed

iTrader: (18)

Larger (4.00") bore size, better camshaft, better heads (243 casting), more compression! There are several features that were improved on with the LS2.

Jon

LS1BLKSS

iTrader: (36)

ls2 is over all better than the ls1 if thats what you asking... stock for stock ls2 for sure...

allbaugh_04

iTrader: (6)

I was reading a gm magazine and almost every FI car had an LS2. Not sure what it all takes for the LS2 to handle boost. Just forged pistons and maybe a different crank?

sslateron

Wow thats pretty darn close match, for such minor mods. I guess they only made some minor changes.

SweetS10V8

iTrader: (4)

Well the LS6 intake is worth 5-10 and the headers are another 7-15hp, neither of which the LS2 doesnt have the advantage of.

I dont even know which one was which, but the blue/purple one was having valvetrain issues it looks like at about 5200+ RPM

Plus they probably werent done on the same day....You cant draw many conclusions other that the purple one was having issues at 5200....

Randy WS6

iTrader: (69)

Plus the LS2 can be bored to .030" over compared to the LS1 .005" over.

ringram

Yeah simeased block vs water passage on the LS1

Fireball

iTrader: (21)

I'm running a production LS2 block, good internals, block filler (hardblok) and pinned the mains...making ~1600 hp

allbaugh_04

iTrader: (6)

holy ****, i'll check your link when i get home...

sean058621

iTrader: (2)

my ls2 gto made 372/377 with headers/catback/cai... untuned.. with a tune I've seen them making 380rwhp+

lilbuddy1587

iTrader: (1)

My 06 with a CAI, tune and full catted magnaflow exhaust put down 380/386. The same mods, minus cats on my 01 SS came out to be 352/356, just for reference.

The only thing that blows on the LS2 is the intake manifold itself. With some work, it can perform but even then, a 90mm on an LS6 intake will blow it away. As was already said, 243 heads, 01 LS6 camshaft, larger bore, etc. etc.