Yes, it's there. Do a "find", and you'll get it

 

Yup, it's there.

Z28 = MERCHANDISED OPT/SPECIAL PERFORMANCE.

Makes you wonder about 1LE being reserved for the GTO though. Maybe Z28 will be taking the 1LE's place like we discussed?!

 

i did a search on gto and found these - click here

 

I was looking through this list and I noticed there are quite a few L6's and L5's. Also I noticed that there was quite a few DOHC 60* V6's and some of those are turbos and one is even a HO turbo. I thought the most intersting thing was the L section, because that is the preface to an engine. Also did anyone notice that B4Z, the iroc code, is listed as Blackbird. Which I can only assume were the hopped up TA's sold at a dealership in Atlanta? Is that right? And one thing is for sure this list WILL make a lot more questions than we had before. Also I don't see Z27 which was the original SS designation in the Camaro but Z28 is on there. I guess that ends the SS vs Z28 descussion. BTW Flamesuit on and ready for action.

 

WU8 = Camaro SS Appearance And Performance

Unfortunatly. How dare they use B4Z, and on a Firebird?!

 

Damn, that was a lot of reading! Took me over 2 hours.

I searched through about all of it an found a few odds and ends that caught my eye.


F55 CHASSIS CONTINOUSLY VARIABLE REAL TIME DAMPING MAGNETO RHEOLOGICAL

F56 CHASSIS CONTINOUSLY VARIABLE REAL TIME DAMPING HIGH PERFORMANCE

LQF PWO M POWER OPTION DURAMAX, 6.6L, 300HP/860LB FT @ 2200 RPM

P30 WHL M WHEEL 20 X 8.5, ALUMINUM, SPORT

PBS IDENTIFICATION ENGINE PARTS, NOT FOR SPEEDSTER

Q10 WHL M WHEEL 18 X 9.5 FRT & 19 X 12 RR

QSS TIR M TIRE ALL P275/55R20-111S BW TL ST AL2

T7J SPP R PACKAGE CAVALIER POLICE CONVERSION

YFJ RTR M TIRE REAR P325/30ZR19-94Y BW TL HW4 EMT


That file is definitly a good one to have around and will definitly come in handy. To bad it dosen't seperate all the European stuff from the US.

 

Well I know that F55 designation is on the Corvette for the new suspension system that debuted on the 50th anniversary. The F56 though I have never heard of. That might be the C6 super suspension set up for a Z06.

Ude! The W62 package! There it is for the high powered GTO we will see in 2005.

I think the YFJ and Q10 packages are also interesting... for the C6 Z06?

 

Have you guys used it to look up the RPO codes from your own cars? Very interesting!

 

Just went through an "engine" search...

LC2-GAS,8 CYL,4.4L,MFI,V8,ALUM,DOHC,GM 20607
LC3-GAS,8 CYL,4.2L,MFI,V8,SC,ALUM,DOHC,GM 10813

Bonneville engines? 4.2L DOHC supercharged?

LLR-GAS,5 CYL,3.8L,MFI,L5,ALUM,VVT,DOHC,GM 20409
LLS-GAS,5 CYL,3.6L,MFI,L5,ALUM,VVT,DOHC,TURBO,GM 20409

LN8-GAS,6 CYL,3.2L,DI,V6,DOHC,ER,ALUM,GM 10411
LQ6-GAS,6 CYL,3.2L,SFI,TWIN TURBO,ALUM,60 DEGREE,GM 20109

DI=Direct Injection? Twin Turbo 3.2L V6?

LTR-GAS,12 CYL,7.5L,SFI,V12,DOHC,VVT,CYLINDER DEACTIVATION,GM 20829
LTS-GAS,12 CYL,7.5L,SFI,V12,DOHC,VVT,ALUM,HO,GM 20829
LTT-GAS,12 CYL,7.5L,SFI,V12,DOHC,VVT,ALUM,TURBO,GM 20903

12CYL Family...no alum on first one- iron truck motor? Turbo V12

LZ8-GAS,6 CYL,3.9L,MFI,V6,CYLINDER DEACTIVATION,OFFSET BORE 11030

Offset Bore? Has anyone discussed that before?

 

I heard there were Cavalier police cars in Mexico and I thought to myself, BS. well, looks like this guide has proved me wrong! Hope they dont get into a chase with any Corvettes or Z28s...........

 

LOL .. there's so many mistakes in that document, it's not even funny. I looked up a few typical "test RPO's" that are ALWAYS wrong, like 47I LU5 AQ9 LQ9 Y84 LL1 W62 and those are all wrong.. who would've guessed (sarcasm) Some, like W69 2PZ QYH Y83 for example aren't even in there at all. Interesting 2004GTO tidbits, but overall, highly useless list; nothing I haven't seen before.

gt

 

C4B -----engine upgrade
GA4 -----performance contracting group(?????)(thought they already had one)
W7X ----increased engine horse power
W7Y ----decreased engine horse power
Y4B ----- Level II ultra performance suspension

 

ZL1 : NOISE CONTROL WITH LESS THAN 8,000 LB GVW

uh huh.

 

i noticed that (i was one of the first i looked up)

 

Long story short: you cannot generalize RPO's. The same exact RPO can mean two completely different things for two different years and models, etc.

Y84 is a good example: Y84 has meant at least FOUR different things that I'm aware of, depending on which year Firebird it was used on. And that's only for Firebirds; I'm sure other car lines have their own Y84 from time to time.

LQ9 is a good example of an engine code; used to be an Iron Duke variant, now it's a big honkin truck V8.

There has never been a complete and accurate RPO list. Ever. That PDF file is certainly not complete or accurate, by a long shot.