GM's 2007 60V6 Lineup

[geoffinbc]

1) Are these engines basically the same engine, block wise, as available in say, a 83 camaro or s-10? Or 88 cavalier? Or 91 lumina etc.?

a) please describe, in great detail, the differences between all engines. I.e., LZ4, LZE etc.

2) i know the 2.8 is 173 CID. Why did they "go back" to 2.8 displacement? Because of turbo?

a) Please list exact cubic inch displacements for all of the current engines.

Are you writing a book? Check the family tree it has your info.

[Stewart G. Griffin]

I'm not writing a book, rockerfeller.

I just feel that there are a lot of variations and it's confusing to me. It seems like there are 10 diff versions of the same engine?

[bszopi]

It seems like there are 10 diff versions of the same engine?

There have been modifications over the past 20 years... Some minor and others major. But for the most part, up until the new VVT engines came out, yes they were all just different versions of the same engine.

[Stewart G. Griffin]

I want someone to please tell me what CID displacement all these different variations are.

Is this so hard?

[bszopi]

2.8l = 173 Cid
3.1l = 191 Cid
3.4l = 207 Cid
3100 = 191 Cid
3400 = 204 Cid

If you want the EXACT CID for the CURRENT engines, go to the link ABOVE (listed twice, once by me and once by CNCguy), then click on the SS next to engine you are inquiring about and open the excel file downloaded from Gm Media and it will tell you the exact CID for the engine. Don't expect anyone to spoon feed you everything...

[Fiero Brick]

2.8l = 173 Cid
3.1l = 191 Cid
3.4l = 207 Cid
3100 = 191 Cid
3400 = 204 Cid

If you want the EXACT CID for the CURRENT engines, go to the link ABOVE (listed twice, once by me and once by CNCguy), then click on the SS next to engine you are inquiring about and open the excel file downloaded from Gm Media and it will tell you the exact CID for the engine. Don't expect anyone to spoon feed you everything...

You're waaaay nicer than I am, Bszopi.

[Stewart G. Griffin]

Yes, anyways.

So then, please ,at least,confirm if the following is true.

GM still basically has only these engines, but they've just changed the names to make it more confusing and to give off the impression that they have all these new engines, when, in reality, they still have these following engines which they've always had:

2.0, 2.2, 2.4 "ecotech"= chevy 4 cylinder originally installed in original cavalier and other J's in 1982?

2.3, 2.4 =the oldsmoble "quad 4" engine? And oldsmobile is not even around anymore.

2.8, 3.5, 3.6 = the 60 degree v-6 which we all know and love?

3.8, 3.9 = the venerable buick 231 v-6?

Northstars are cadillac's claim to fame.

And the LS4, LS2 LS7 are chevy small blocks. Although not the same as the original 55-97 version.

So, it looks as though nothing in actuallity, at least engine wise, has really changed much from the 80's?

[RebelGT]

So, it looks as though nothing in actuallity, at least engine wise, has really changed much from the 80's?

No...

[RacerX11]

Blah Blah Blah Blah

Talk about mis-information overload.

[prophiseer]

y'all too nice . . .

[SappySE107]

Yes, nothing has changes since the 80s. Much like your haircut.

Please explain in great detail your knowledge of engines.

b) is your name aaron?

c) do you own a fiero?

[sharkey]

ecotec dohc- its a new motor to gm in 2002. it has been used overseas for quite a few years previous. and it shares nothing with other motors. there are curently 4 versions avalible, 2.2l n/a base motor, 2.0l supercharged, 2.4l vvt, and 2.0l turbo (in saab cars), and soon will be a 2.0l turbo direct injection.

1.8l, 2.0l, 2.2l ohv- this is the engine family used since the begining of gm fwd. they have gone through many changes over the years. all were low performance economy based engines, upgraded just enough over the years to keep them competitive with other manufacturors low end engines

2.3l quad 4 /2.4l twin cam- this was the first performance n/a motor from gm. back in the early 90s, the quad 4 high output was a force to be reconed with as far as 4 cyl cars go. they were dohc 16 valve motors, all with fairly high compression, and was the best 4 cyl offering from gm till 02, when the ecotec came out to replace it.

1.6/1.8/2.0l sohc- these motors were gm's first global motor, and the engine family is still being used by opel today. engineered and built in brazil, these motors started their life as vase economy engines, and in 84, the 1.8l turbo motor introduced. in 87, the 2.0l turbo was introduced, making an impressive 165hp/175ft/lb torque. a motor plagued with head gasket problems, it was killed after 1990. the n/a 2.0l motor lived in the cunbirds till their death in 94. the engine family is still used in dawoo, isuzu and opel, now with dohc heads, bigger displacment, and even a 2.2l dohc turbo making over 200hp in european cars.

90 degree v6- includes 3.0l, 3.3l, and 3.8l engines. these were all deriviteves of the buick 3.8l rwd motor.

60 degree v6- 2.8, 3.1, 3.4, 3100, 3400, 3.4ldohc, 3500, 3900, 2.8 and 3.6vvt, ect. all started in 1980 with the 2.8l. for more info, see the family tree.

4.3l- its in a class by itself, the 4.3l uses many parts from a gen 2 smallblock chevy. it is actualy a smallblock less 2 cylinders.

im not going into the rwd v8 stuff from late model vehicles. basicly there is the gen 2 smallblock, gen 3 smallblock, big block 454 and 496.

[Stewart G. Griffin]

Soooo.......

1) "echotech" line and the 1.8 2.0 2.2 are NOT the same engine, blockwise?
a) Are the 1.8, 2.0, 2.2 still being used/produced?


2) sohc 1.6 1.8 2.0 and ovc 1.8,2.0 2.2 WERE NOT the same engine, blockwise? By the way, i believe the sohc 2.0 turbo engine was available in the states in the sunbird as early as 84.


More later.

[sharkey]

1) all ecotec motors are dohc all aluminum motors. the 1.8/2.0/2.2 are an overhead valve motor with an iron block, and pre 90 had a cast iron head. they are in no way the same motor and nothing is shared between them. 2 completly different designes.

2)the 1.6/1.8/2.0l sohc motors were actualy built in brazil. they share nothing with the 1.8/2.0/2.2 ohv motors. again, 2 completly different engine famalies. in 84 there was a 1.8l turbo motor, made 150hp. the 2.0l n/a and 2.0l turbo wernt produced till 87.

gm had a lot of different fwd motor families. im not even going into the saturn motors (another family completly) and the isuzu motors (some are derivitives of the 1.6/1.8/2.0l brazil motors).

also there was the 2.5l series, aka iron duke or 4 tech. these were actualy a 4 cyl version of a 305ci smallblock.

[Stewart G. Griffin]

1) Why (do you think) did they go back to the 2.8 displacement size?


2) What are the differences between the 3.5, 3.6, 3.9 motors? .1 a litre does not seem to warrant producing a different engine. So, there must be other differences?


3) i take it the original j-body engines i.e, 2.0, 2.2 are no longer produced?