LS engine codes

[onesickGSX]

Figured I'd make a list of LS engines, what they can be found in, factory specifications, and bang for buck tips.


LS1

346 CID or 5.7L
Cast aluminum block
Aluminum cathedral port heads
3.900" bore X 3.622" stroke
10:1 compression
305-350 HP & 335-375 TQ
vehicles it's found in:
98-02 fbody
97-04 vette
04 GTO


LS2

364 CID or 6.0L
Cast aluminum block
Aluminum cathedral port heads
4.000" bore X 3.622" stroke
10.9:1 compression
400 HP & 400 TQ
Vehicles it's found in:
05-07 vette
05-06 SSR
05-06 GTO
06-07 CTS-V
06-09 trailblazer SS


LS3/L92/L99

376 CID or 6.2L
Cast aluminum block
Aluminum rectangle port heads
4.065" bore X 3.622" stroke
10.7:1 compression
400-430 HP & 410-428 TQ
Vehicles it's found in:
08+ vette
10+ camaro
08-09 G8 GTP
07+ Escalade, Tahoe, Silverado, Yukon, Sierra, and hummer H2


LS4

325 CID or 5.3L
Cast aluminum block
Aluminum cathedral port heads
3.780" bore X 3.622" stroke
10:1 compression
290-303 HP & 325 TQ
Vehicles it's found in:
06-14 Impala SS
06-07 Monte Carlo SS
05-08 Grand Prix GXP
08+ Lacrosse


LS6

346 CID or 5.7L
Cast aluminum block
Aluminum cathedral port heads
3.900" bore X 3.622" stroke
10.5:1 compression
385-405 HP & 385-400 TQ
Vehicles it's found in:
01-04 Z06 vette
04-05 CTS-V


LS7

427 CID or 7.0L
Cast aluminum block
Aluminum rectangular port heads
4.125" bore X 4.000" stroke
11:1 compression
505 HP and 470 TQ
Vehicles it's found in:
06+ Z06
15+ Z28


LSA/LS9

Supercharged 376 CID or 6.2L
Cast aluminum block
Aluminum Rectangular port heads
4.065" bore X 3.622" stroke
9.1:1 compression
LSA 556 HP & 551 TQ
LS9 638 HP & 604 TQ
Vehicles it's found in:
09+ ZR1 vette (LS9)
09+ CTS-V (LSA)
11+ ZL1 camaro (LSA)


LQ4/LQ9

364 CID or 6.0L
Cast Iron block
Aluminum or iron cathedral port heads
4.000" bore X 3.622" stroke
9.4:1 compression LQ4
10:1 compression LQ9
300-347 HP & 360-380 TQ
Vehicles it's found in:
LQ4
99-04 silverado, Suburban, Yukon, hummer H2
LQ9
02-06 Escalade
03-07 silverado SS, Sierra (most likely Denali)


LY6

364 CID or 6.0L
Cast iron block
Aluminum Rectangular port heads
4.000" bore X 3.622" stroke
9.67:1 compression
352 HP & 382 TQ
Vehicles it's found in:
3/4 ton 07+ Silverado, Sierra, Suburban, Yukon


L76

364 CID or 6.0L
Cast aluminum block
Aluminum rectangular port heads
4.000" bore X 3.622" stroke
10.4:1 compression
366 HP & 376 TQ (trucks)
361 HP & 385 TQ (G8 GT)
Vehicles it's found in:
07+ Silverado, Sierra, Suburban, Yukon, Avalanche
07-09 G8 GT

VORTEC 5300

325 CID or 5.3L
Cast iron or aluminum block
Iron or aluminum cathedral port heads
3.780" bore X 3.622" stroke
9.5:1-10:1 compression
285-320 HP & 325-340 TQ
Found in
99+ mid/full sized trucks and SUVs


VORTEC 4800

293 CID or 4.8L
Cast iron or aluminum block
Iron or aluminum cathedral port heads
3.780" bore X 3.267" stroke
9.5:1 compression
270-295 HP & 285-305 TQ
Found in:
99+ Silverado, Sierra, Tahoe, Yukon

 

[Kansas Bu Wagon]

Good info. This should be a sticky.

Thanks for posting it!!!

 

[onesickGSX]

As far as bang for your buck the obvious choices are the 4.8 and 5.3 motors as the are quite readily available and with the right cam and intake setup should easily pass the 400 HP mark and with a turbo setup could easily make 600+ HP reliably with forged internals.

Due to their large combustion chamber and decent flow numbers; when ported 317 heads from the LQ4/LQ9 are great for forced induction setups on cylinder bores smaller than 4.000"

If your looking to build an LS with a 4.000" or larger bore then heads are quite cheap as well. L92 heads are great for N/A setups due to their huge flow volume (330 cfm as cast) and small combustion chamber. If your looking to build a forced induction motor the LSA heads are your best bet as the flow comparably to L92 heads but have a much bigger combustion chamber, have a thicker deck, and use superior aluminum for the casting. Either L92 or LSA can be picked up new for under 900 bucks a pair assembled.

 

[onesickGSX]

No problem. I wish I had more specifics on the 4.8 and 5.3 castings as I think any future projects I do will most likely be powered by them. I'll do some more research and see what I can come up with.

 

[Kansas Bu Wagon]

No problem. I wish I had more specifics on the 4.8 and 5.3 castings as I think any future projects I do will most likely be powered by them. I'll do some more research and see what I can come up with.

From what I've seen there are quite a few variations of the 5.3's: LM7,L33, L59,LS4 and I'm sure there are more. And the later model 5.3's got the stronger rods. And some are aluminum block also.

 

[jones20992]

No problem. I wish I had more specifics on the 4.8 and 5.3 castings as I think any future projects I do will most likely be powered by them. I'll do some more research and see what I can come up with.

From what I've seen there are quite a few variations of the 5.3's: LM7,L33, L59,LS4 and I'm sure there are more. And the later model 5.3's got the stronger rods. And some are aluminum block also.

aluminum block 5.3's

LY5- 2007-present Silverado
LH8- H3 Alpha, Colorado/Canyon
LH6- 2005-present TB/Envoy, 2007-present Silverado
LS4 - 2006-2008 Chevrolet Impala SS 2006-2007 Chevrolet Monte Carlo SS 2005-2008 Pontiac Grand Prix GXP 2008 Buick LaCrosse Super FWD Block w/ LS6 Heads
LM4 - Identical to the LM7 in power/torque 2004 Chevrolet TrailBlazer EXT 2004 GMC Envoy XL 2004 Chevrolet SSR
L33 High Output version of the LM7 2005-2007 Chevrolet Silverado 1500 4WD 2005-2007 GMC Sierra 1500 4WD

I would also like to add that some early 4.8's had iron heads.

If this becomes a sticky we should add winch rpo #'s have DOD/AFM, VVT, and DBC or DBW. If y'all want some help with that let me know

 

[onesickGSX]

Jones it would be nice if we add which use fly by wire, DOD, and VVT. I'll start with what I know if you have ones to add let me know. It would also be nice to know which engines used a return line and which don't. I've heard one of the caddy fuel filters had a built in return.

 

[Kansas Bu Wagon]

Jones it would be nice if we add which use fly by wire, DOD, and VVT. I'll start with what I know if you have ones to add let me know. It would also be nice to know which engines used a return line and which don't. I've heard one of the caddy fuel filters had a built in return.

That would be nice to know which one are return less. It would let people know if they can use the corvette fuel filter/ regulator combo.

 

[onesickGSX]

After doing some searching it doesn't seem as though there is a definitive year that drive by wire started. Most earlier models that had it where equipped with traction control or stability control.

04 was supposedly the first year for DOD. And I think VVT didn't start until 08 or so luckily all of these can be removed. However I'm curious how the fuel plumbing works in the new return less systems.

 

[jones20992]

if we could agree on a format we could open up a google doc and work on this together.

maybe like this

https://docs.google.com/spreadsheets/d/ ... sp=sharing