All of them started off as firebirds, the V8 option made it a formula, and then some other BS options made it a full blown trans am. So if you do a car fax on the car and it comes up as a firebird formula-trans am, thats why. As of back in 94's I have seen cars with the trans am front and the formula rear.

 

my friend has a 99 ws6, and i was looking at his rpo codes the other day, and i noticed he only had the ws9 rpo, not the ws6. while we were at a car show, i asked a couple guys from revextreme, and one of them said it couldve just been a formula that was converted by the dealer. which makes sense to me. if it was a ws6 from the factory then it should have the ws6 rpo... thats my .02

 

sorry to dig this old thread up , btu since this , has anyone found out what a formula conversion means?

 

yes.

it was posted in other threads too, girl.

every pontiac fbody started off as a plain v6 'shell', they were either kept as a v6, or converted to a formula, TA or other model....

so if it was converted into a formula, it would have the ws9 rpo, and so on for the other models and their respective rpos

 

it goes thru an evolution..... firebird->formula->trans am. hence the ws9 "conversion"

 

okay thank you , that code should be added to the rpo sticky

 

this has nothing to do with f-bodys. but im lookin at a 87 regel t and it has a WE4 rpo code. ive never seen seen that code on a regel t ive only seen it on grand nationals. anyone have any info to share on this.

 

you may want to start a new thread cos no one is gonna look at this one , its to old, maybe in the racer's lounge it would get more views

 

I realize this thread is 5 years old, but I literally just sold a WE4 T-Type this morning and bought an ls1 Formula WS9 today. Thought it was real funny to see this but figured i'd share my knowledge...

The "WE4" was a code given to 1547 T-Types in 1987 only. Some say its coincidence that the GNX had a production number of 547 (1,000 more on the dot WE4s), some do not. As all T-Types, the WE4 was the exact same car as a Grand National without the appearance package = 2 tone seats, door panels, black carpet, chrome wheels and emblems. The WE4 was special not only because it was rare, but also because it came with lighter, aluminum drums and bumpers from the factory making it lighter than any Turbo Regal and therefore faster than GNs and T-Types. It also came with the "blackout package" which includes black headlight bezels, black grille, black bumpers and trim, all instead of chrome. This was available on other T-TYpes as well, with RPO code "w02." WE4s, however, ALL came with the w02 blackout package. And for those that were wondering, RPO code for Grand National is we2.

-Kevin

 

Ugh, an ancient thread with a ton of mis-information. Mods might consider locking this.

Regal guys would be best served asking/posting info about their Buicks in seperate thread........ maybe even on a seperate board? I seriously doubt many Buick folks will stumble across this thread. Nonetheless, welcome to LS1-dom, kTrainHurricane.

FWIW: WS9 is "Formula Conversion", which merely means it's a Firebird w/ a V8 drivetrain. ALL Formulas and T/As have WS9, and it has nothing to do w/ WS6 or 1LE.

Formulas will have W66 in addition to WS9.
T/As will have Y82 (coupe) or Y84 (vert) RPOs, in addition to WS9.

WS6 was an option on Formulas ('96-'00) and T/As ('96-'02).

From '96-'00, factory 1LEs required WS6, and were all Formula HTs.

As will all factory options, if the RPO code isn't on the build sheet, the car didn't come w/ it from the factory.

No Formula WS6 or 1LEs were built after 2000. SLP offered optional 1LE content on Firehawks in '01-'02, but these cars won't have a 1LE RPO code.

 

Actually i've seen 95 and even i think 96 T/A's with the formula spoiler. While the trans am GT option was only in 93-94 (i think ALL 93 T/A's were technically GT's) in 95 and 96 and maybe 97, the uplevel spoiler was a $375 option, RPO T43 on 95 and 96s. I have seen 95-96 T/As without it.

 

LIES, WS6 is King thats all you gotta know

 

holy cow i couldn't believe this showed up under the updated subscribed threads this morning...

 

The T43 uplift spoiler was optional on T/As from '94-'97 (although T/As w/o the spoiler were pretty rare by '97, only 49 T/A were built in '97 w/o T43). By '97, all T/A WS6s had T43, but in '96 at least 521 T/A WS6s did not have T43 (could this be why some still refer to the uplift spoiler as the "WS6 spoiler??? )

In '96 & '97, you could order the T43 on a Firehawk Formula.

 

yeah after i put the WS6 hood on my car someone was like "oh i see you added the WS6 spoiler too" lol. No GM added that when the car was built.

regarding the WS6 and that spoiler, thought T43 was a mandatory option on the T/A in 96 if ordered with the WS6? are you sure the 521 cars ordered with WS6 but not T43 weren't the Formula WS6's?

 

my 95 t/a did not come with the high wing, er.. i mean ws6 spoiler (sarcasm intended)

 

OOPS, I do need to correct my statement. There were at least 521 '96 T/As total (including WS6s) that did not get the T43 spoiler. At least 14 of those 521 non-T43 T/As were WS6s. These 521 cars all had RPO Y82 (T/A). The WS6 Formulas have RPO W66 instead.

It may be possible that these few non-T43 WS6 T/As built were pilot cars / engineering mules / prototypes or very early production cars built before they made T43 and mandatory option on WS6 T/As.

 

A Formula is the WS9 Formula conversion.
A WS9 and Y82= Formula and Trans AM conversion
A WS9 and Y84=Formula and Trans AM conversion and it is a convertible

 

(zombie thread won't die)

From above:
Formulas will have W66 in addition to WS9. Formulas will NOT have Y82 or Y84.
T/As will have Y82 (coupe) or Y84 (vert) RPOs, in addition to WS9.