The engines will have direct injection, there will be a 6.2L version. A 5.5L version for racing, and a 5.3L version for trucks. The 6.2L version for the Vette is rumored to be called "LT1". I am not happy that they are recycling that name/code so soon.

What else do we know?

 

anyone? I'm sure at least a few of you must have opinions of the LT1 name being reused.

 

On the name, my minds eye of the LT1 is the less powerful pre LS1 Camaro. Werent they the ones with the famous Opti Spark that couldnt get wet?


Anyway I do not have a relatively high opinion of the name compared to LS1, LS2 and LS3 and do not understand using it so soon either.

If true, Im sure the Gen V will eventually build its own reputation for the name but I dont get why they would do that.

I am interested in hearing more but I dont have any info to offer. Especially how its been mentioned here and there by I believe Charlie and different people but with no details


Was it the Gen V or LSX that concept pictures on here were put out a couple years back with the Cam higher in the block? was supposed to be illegal in NASCAR but gave some kind of advantage.

I am not trying to start rumors. I really do not remember.

 

I don't know.

The XV8 had two cams in block and 3 valves per cylinder along with intake cam phasing, direct injection, displacement on demand, active intake manifold, and some other tricks. Some of that stuff has already made it to production.

There was an L92 that was modified for DI in '07, but I think the cam positioning was the same on that. Somewhat of a preview of things to come as far as V8 features.

There is discussion of the cam position, but I don't know that it has actually appeared in a publicly seen prototype:

 

Where did you see this at? I haven't heard anything in stone and been keeping my ear to the ground waiting for the DI genie to unleash the 6.2 to it's full naturally aspirated potential. Better be in the 470hp+ range like the 6.4 hemi even though it needs to be DI as well which will put it over 500hp hopefully.

 

You're forgetting about the original LT-1 of the early 1970's that were used in Corvettes, Camaros and other performance Chevrolets.

Keep in mind that GM has been using three character RPOs beginning with "L" to designate engine codes for decades. They are already up to LS9 for the Gen IV small-block V8 so it makes perfect sense to re-use "LT*" again for the Gen V.

 

I feel like they've used the "LT" and "LS" letters to death.
Why not a new range of RPO engine codes. Like LA1, or LK9, or LZ3. Doesn't matter. Anything but LT or LS.

 

I tend to agree.

Back in the 1960s it was L and two numbers; for instance in L48 (350/4bbl V8), L35 (396/325hp big block), L78 (396/375hp big block), etc. I suspect they used LT and LS in recent years to distinguish the performance V8s from the rest. Perhaps they could do something like "L8*" for the V8s and "L6*" for the V6s, etc. However, GM themselves seems to prefer the generic "small block V8" moniker, so I guess its just the enthusiasts that have an issue with the whole "LT/LS" thing.

 

What I am thinking of was a couple years back so it is probably not the Gen V I guess or maybe someone else would have mentioned it. Also when everyone was talking about it there was a rendering that was a cross section cut away of the engine everyone was talking about.

 

No I wasnt forgetting the 1970s LT-1 I do not know much about them and thats not the first thing that pops in my mind especially so close to the last LT-1. That was the way the question was worded too.

I know the LS has run 1- 9 basically. Like others said what about something new? There are more letter combo's than the last two used LS and LT

To me its not as big of a deal as say the trim level name.


EDIT: Heck there are a lot of options

Among others...

DZ
etc

 

I don't know about that one. The closest thing I can think of is the XV8. The exhaust cam would have been relatively high since going from bottom to top it had the crank, then the intake cam, and then the exhaust cam.

Clearly the NASCAR engine already used something like that, but it is at the limit within NASCAR rules, whereas with the Gen V there is no limit, besides what is practical by engineering standards.

http://machinedesign.com/article/che...all-block-0207

 

I agree with you.

 

LOL forget you guys, my old LT1 in my 97 was bad ***!!!!!! Sounded way better than any LS motor too!!!!!

 

It's been 20 years since the last LT1 was introduced (1992-2012). The previous LT-1 came out in 1970, 22 years before that. How long did you want them to wait? How long did you expect them to wait?

My take on this: The engines used in cars targeted at performance enthusiasts should be easy to rattle off in typical gearhead conversation, and they should evoke a sense of power or performance. Personally, I don't feel like LA2 or LB3 accomplishes that as well as LT1 or LS7. I do think that LZ* would work, and LX is good too. LSA is okay, but I think LSB and most everything after that would be a mistake (with the notable exception: LSX, but that's taken).

If memory serves, the 3.6DI in the V6 5th gen is the LLT. Do you want Holley to start calling their annual event the Holley LL fest?

I would argue that GM Powertrain has a lot of market value tied up in the LS* naming system, and a fair amount in LT* as well, and that for that reason it makes perfect sense to reuse engine codes for performance applications after 20 years or so.

 

Whats wrong with LS5, LS8, LS10 or LS11.