Engine ID help

[Jon Cole]

Somewhere along the way, I missed the course on engine ID's. Now everytime I see talk of LT-1, Z06, etc I am lost. I am still stuck back in the days of 327, 350, and 427 cubic inches. Can someone please explain GM's "L" codes? Any other engine help would be appreciated. I do know Mopars new Hemi where an R/T is a 5.7L, and an SRT8 is a 6.1L

Ford's 5.0L... I am "litre" challenged... how many cubic inches?

Yeah, it's a bit embarrassing but I want to get this so I can move on.

Thanks!

[CAL]

5.7 = 348

6.1 = 372

5.0 = 305

1 liter = 61.0237 CI.

[highway]

I'm not a GM expert, either, but, simply put, the Chevy LT-1 is a small block Chevy. The LT-1 is commonly found in the mid and late 90's Camaro, Firebird, and standard Corvettes. The ZO6 is a model designation for the high end Corvette models, similar to the ZR-1 of the early 90's.

[highway]

5.7 = 348

6.1 = 372

5.0 = 305

1 liter = 61.0237 CI.

CAL, the 5.7L can also be a Chevy 350, and 5.0L is also the designation given to Ford's and Chevy's 302 engines. The numbers you have might be the exact numbers (don't know, I didn't add them up ), but the liter designations used today are just giving you an approximate engine size. If I remember correctly, I think both Ford's 351 and Dodge's 360 where both listed as 5.8L, weren't they?

[CAL]

I'm not a GM expert, either, but, simply put, the Chevy LT-1 is a small block Chevy. The LT-1 is commonly found in the mid and late 90's Camaro, Firebird, and standard Corvettes. The ZO6 is a model designation for the high end Corvette models, similar to the ZR-1 of the early 90's.

That would be a Gen 2 LT-1 because the LT-1 goes back to 1970s H.O. 350 motor.

Yes, a little harder to follow was corvettes which a Z06 was a hopped up C6 (Corvette 6th Gen) which could have an LS-7 or an LS-3 and the ZR1 had the LS-9

[CAL]

CAL, the 5.7L can also be a Chevy 350, and 5.0L is also the designation given to Ford's and Chevy's 302 engines. The numbers you have might be the exact numbers (don't know, I didn't add them up ), but the liter designations used today are just giving you an approximate engine size. If I remember correctly, I think both Ford's 351 and Dodge's 360 where both listed as 5.8L, weren't they?

Correct, the domestic manufacturers used great liberties with Liter designations.

I know Ford used 5.8 as not to be confused with Chevy's 5.7.

The Europeans and Asians do it right and calc cubic centimeters and round to 1 decimal to designate their engines in Liters.

The 302 was before this really became an issue but I believe Chevy did call their 305 a 5.0 Liter.

Which was more correct than Ford calling their 302 a 5.0L.

[CAL]

I'm not a GM expert, either, but, simply put, the Chevy LT-1 is a small block Chevy. The LT-1 is commonly found in the mid and late 90's Camaro, Firebird, and standard Corvettes. The ZO6 is a model designation for the high end Corvette models, similar to the ZR-1 of the early 90's.

That particular LT-1 would have been the Corvette 350CID 350hp found in the Z-28 and Trans Am only.

[Eric Stone]

Not counting the 1963 ZO6, ZO6 Corvettes are C5s from 2001-2004, and C6s from 2005+. The C5 ZO6s have a 5.7L LS6 engine ranging from 385-405hp. The C5 ZO6 is on the fixed roof coupe platform only- no convertibles or standard hatch back glass body style ZO6s. The C6 ZO6 is 2005 and up, on the standard body style with wider fenders, different spoiler, and an air intake in the nose as the notable body changes. (You can also get this body kit on a non-ZO6 Vette.) The C6 ZO6 runs a 7.0L LS7 engine rated at 505hp.

The late model LT1 is the Gen 2 smallblock Chevy, and was used in C4 Corvettes from 1992-1996, F-bodies from 1993-1997, and 1994-1996 Roadmasters, Impalas, and Caprices. Lots of good info here- http://en.wikipedia.org/wiki/GM_LT_engine#LT1

The LS family of engines is pretty big, and has many versions for different applications. Rather than try to summarize, I'll just point you to the info here- http://en.wikipedia.org/wiki/GM_LS_engine

[Harold]

Ford started this nonsense in '66 with the addition of the Galaxie 500 7 Liter (428 cubes). They were heavily involved in international motorsports at the time, and were running the 427 (again, 7 liters) in the Ford GT Mk IV (they actually called the 428 the 428 even though it was actually 427, so as not to confuse it with their race motor). As for Ford calling the 302 the 5 liter (the 'point- 0' is silent.), was for SCCA Trans- Am racing (even though the engine is 55 cc's shy of 5,000), they just rounded up, as their big 6 for the trucks was, at 300 cubes, a 4.9.