Engines

[024mula]

What is the basic horsepower of all of the engines, the LS1, LS2, LS3, LS4, and the LSX?

[BashamWS6]

LS1-320
LS6-400
LS3-430
(these i know off the top of my head)
the 402/408 stroker iron blocks are also popular on here and TECH

bolt-ons and tune will range these numbers greatly. internals....that much more.
it all depends on what you put into them. people with ls1s can embarrass a Z06.

then again. numbers are just for bragging rights... dont get caught up in HP/TQ numbers...
i was the same. what matters is 1/4 mile times.

with that being said...
why do you ask?
if you are planning to drop a new engine in there...
what are your goals and what is currently done with the car?

[024mula]

The car is all stock.

No, I'm not planning on getting a bigger motor. I just think a person should know as much as he can about engines and whats out there.

Thanks for the breif engine lesson.

[06MonteSS]

LS4 - 303hp / 328 tq - stock numbers...

[Big Chevy]

LS2 = 400hp

[dpfocjack]

For LSX it's 800 HP.

[04yellowjacket]

not all ls1's were 320. my 04 gto is a 350 and had 309rwhp new off the showroom floor.

[pajeff02]

not all ls1's were 320. my 04 gto is a 350 and had 309rwhp new off the showroom floor.

There is a significant difference between flywheel horsepower and rear wheel horsepower. Assuming you have an M6, subtracting approximately 12% for driveline losses results in your "350" having measured rwhp of right around 309.

[Smittro]

not all ls1's were 320. my 04 gto is a 350 and had 309rwhp new off the showroom floor.

..and no LS1's are "350" ci. they are 346 ci..

[pajeff02]

Well... I read that and thought he was saying his GTO was rated for 350 h.p., not that it was 350 cubes. Going back, I guess that is what he meant though. Thanks Steven.