ok everyone there is was discussion in another post about what a GTA came with and now i am confussed. what exactly is the B2L code and what is the official RPO code that designates the 5.7 TPI in the GTA and i guess IROCs for that matter. i have looked up the B2L code and it says 5.7 PFI. and i thought that the L98 was the RPO code for the 5.7 TPI in GTAs. but i have been told that it is actually B2L. so anyway i am confussed and would like some clarification on the sublject. thanks TINFY

 

to the best of my knowledge B2L was the code GM used for the L98 in hte F-bodies becasue they had iron heads instead if aluminum like the vette's L98 did.

P.F.I.= Port Fuel Injected
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84 FIREBIRD-(undergoing rebuild)2.8 V6,5spd,T-Top
90 Formula Modded 350 TPI T-Top
WANTED:82-84 Firebird 2.5 4cyl,4spd-Just Cause

Previous 3rd gen's
83 Trans-Am 305 CFI auto T-TOP
84 Firebird 305 H.O. auto HARDTOP
87 Firebird 2.8 V-6 auto HARDTOP

[This message has been edited by Dave84Bird (edited February 25, 2001).]

 

L98: 350 5.7 Tuned Port Injection

B2L: 350 5.7 Tuned Port Injection.


They are the exact same engine used in Third Gens, there are just 2 ways to say the 350 TPI's option. L98 is the more know way to say it.

84 is correct about the heads.

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Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.



[This message has been edited by IROCZTWENTYGR8 (edited February 25, 2001).]

 

here goes you know how the new engines are called the LT1 and the LS1. Well this is the L98. The RPO code for it was B2L but the name of the motor is L98.

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LONG LIVE THE MUSCLE CAR!!!!! MAY ITS REIGN NEVER END

1983Z28 350w/ edelbrock performer RPM power package with 64cc aluminum heads, flowtech shorty headers, 700R-4 with shift kit, 750cfm carb, edelbrock 3" exhaust systemm, ASCD SS hood, 16" IROC rims.

future mods:
completely done over suspension, black paint with flames, B&M shifter, dakota digital gauge package, procharger supercharger.

 

L98 : 5.7 LITER V8 TPI ENGINE
B2L : PERFORMANCE PACKAGE & ENGINE PACKAGE V8 5.7LPFI


L98 is the GM universal code for a 350 with tuned port fuel injection. Period. All 350 thirdgens have L98. B2L is the GM code for the L98 in a thirdgen. When you buy a 350 thirdgen you automatically get the B2L option package that includes an oil cooler (KC4), posi (G80), and generally rear disk brakes (J65), and 3:23 or 3:27 gears depending on the year. Also when an L98 went into a camaro or firebird they used different accessories, and accessory brackets than a vette. My interpretation is that B2L is an option and equipment package that contains those changes needed for installation into a thirdgen.
To say that a 350 in a thirdgen isn't really an L98 is just misinformation, if B2L took the place of L98, then the code L98 wouldn't appear on the rpo sheet. All of GM's engine codes start with an L, B2L isn't an engine code.

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Drew
The lone Thirdgenner of the Apocalypse
predatorman@hotmail.com
My Website
87 Iroc
91 Formula 14.3@98mph
91 RS Convertible
91 Firebird V6Sold
92 S10FOR SALE!
98 Grand Am GT

 

Drew, the 3.23 (10-bolt) or 3.27 (9-bolt) gears are optional. Plenty 350's came with 2.77 (9-bolt). But I think the 90-92 350's all came with 3.23's.

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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

I believe every B2L GTA came with a 3.27 from 87-88,and 3.23 from 90-92.2.73 gears were available but only in the 90-92 LB9 automatic.The 2.77,was only in the IROC.

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1990 Trans Am GTA
Black/Black leather
350 auto 3.23 dual cats
SLP package
SLP torque converter
SLP shift kit
Fastchip PROM
245/50/16 GSC's

G-Tech
0-60 5.1 1/4mile 13.6@104

[This message has been edited by black5.7GTA (edited February 26, 2001).]

 

I said Generally they have the specified gears because generally they did, but not always... in 87 the 3:27's were standard, 88 and 89 could have the ****ty gears, as where 90-92 used 3:23's.

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Drew
The lone Thirdgenner of the Apocalypse
predatorman@hotmail.com
My Website
87 Iroc
91 Formula 14.3@98mph
91 RS Convertible
91 Firebird V6Sold
92 S10FOR SALE!
98 Grand Am GT

 

ok cool. the only thing i could think of was that B2L means you have a 350 and L98 means you had the TPI 350 instead of the TBI 350. man they really get confussing with the whole RPO codes and everything.thanks TINFY

 

350 TBI????

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Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.

 

I know someone with an 87 L98 GTA with 2.77's, but I dont know if its stock. Its supposed to be 3.27's in 87. And you can get 2.77's in Trans Ams too, not just IROCs.

 

91Z,your right,some GTA's in 87 had 2.77's according to the GTA source.I had forgotten.That info conflicts with the tech section(one of many conflictions) on this site which says that gear wasnt available till 88,and like I said WITH the B2L package only available in the IROC.I know TA's had 2.77's but that was only with LB9 and MXO.The GTA source also sas that GTA's with B2L came standard with 3.27's in 88, 89,and 3.23's in 90 but 91-92 either 2.73 or 3.23.Very confusing because this site lists the IROC,Z28,Formula,Trans AM,and GTA,but doesnt differentiate and only gives correct info for the IROC and Z.Whoever wrote it must be from Chevy and not like Firebirds

[This message has been edited by black5.7GTA (edited February 27, 2001).]

 

*sigh*

 

yea IROCZTWENTYGR8 wasnt the 350 that was availible in the TA TBI or was it TPI? if it was TPI then basically you could get a TA that was identical to GTA except for the paint and gold rims. which would be really stupid if you asked me. TINFY

 

No, All 350's are TPI.

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Looking For:

87 IROC-Z 350 TPI
84 TRANS AM 305 H.O.

 

Tinfy,Karfreek has one of those Trans Ams,its an 89 5.7 TPI.

 

ok thanks. i dont know, if i owned a GTA i think i would feel kinda cheated. i just hate it when a special or top model is actually nothing more than paint and wheels. sorry GTA owners nothing personal. i just wish models where more different and seperate like in the old days. TINFY

 

I dont know what you mean by "cheated"the GTA is the top of the line thirdgen(non Firehawk,TTA)You can argue about the styling,but the interiors are definetly nicer then then the IROCS,Z's,TA's and Formulas,and came more optioned from the factory then any of them.(hope I dont start any wars I love IROCS as well(my first car was an 86)but it doesnt compare to my GTA.Although,a Red with Gray leather 90 5.7 IROC is my favorite and was the car I first fell in love with after I read about it in the March 1990 issue of MoterTrend.I didnt really like GTA's that much compared to the IROC back then,(that article really got me)but have done a complete 360 the past couple of years and this past year since owning one.Who knows,maybe I'll do another 360 again in a couple of years.

[This message has been edited by black5.7GTA (edited February 28, 2001).]

 

yea your right about the interiors. i just think that pontiac should have never allowed the buyer to order a TA with the 350. that should have been left to the flagship GTA much like chevy did with the IROC as compared to the RS. i know the GTA was supposed to be more livable with the options it had but you could get a TA with the same engine, suspension, wheels(different color), and loaded except for the little things like that i personally would not care about if they werent there. I just think they should have not made the TA as good as a performer as the GTA. It just makes the GTA a luxury option vs an all out performance and luxury option which would make it more special i guess. to me anyway. thats what i mean hope it makes since TINFY

 

I always took the B2L designation to differentiate between the iron heads used on L98 3rd Gen F-bodies vs aluminum heads used on L98 Corvettes. This is because there is no other RPO code to signify this difference. All the other options have a separate RPO code.

Something like the biggest difference I've seen between G92 and non-G92 L98 cars seems to be the lack of rear disks. I have a non-G92 L98 GTA, and that is the only option I am missing.

Yes, GM packaged many of the options on other option packages, but when I look at specific differences there is usually 1 specific option from the option package that was unique to a particular code. In the case of the B2L; iron heads seems to be the major difference.

The bottom line is that all L98 3rd Gens I've seen got both RPO codes B2L/L98.

 

Uhm... the GTA was an upgrade to the Trans Am, like the IROC was an upgrade to the Z28. The Trans Am has always been able to get the best possible engine for that year.

 

Okay Tinfy,I understand what you mean now,this is how I would have done it if I were GM
87-92 GTA's only available with L98,or LB9/5spd
87-90 IROC Same
91-92 Z28's same
87-92 Formulas LB9,L98 only
87-92 RS's fine the way they were.
87-92 TA's LB9 only
87-88 Z28 same as TA's

This would have elevated the GTA's and IROCs aliitle more,and I know would have obsoleted the instances when looking at used cars(like when you go look at a nice advertised IROC and its got a fricken T-body moter in it,or a GTA advertised as a 350 and its a damn 305. But GM could really give a $hit less about the used car market.

[This message has been edited by black5.7GTA (edited March 02, 2001).]

[This message has been edited by black5.7GTA (edited March 02, 2001).]

 

yea i would have done it like that too.

Kevin91Z i know they were upgrades to their respective models. but take for instance 1988 if you wanted a V8 camaro you could get the RS or you could get the IROC which was faster and all around better than the RS. it was the flagship camaro. yet if you wanted the flagship TA you got a GTA that could be beaten and out performed by the TA with an L98 and WS6. so that leaves pontiacs F body flagship nothing more than a luxury option. and if i were the owner of a flagship model of a performance car i wouldnt want someone with a "lower" model to beat me. key word here is performance not luxury thats what i am saying. and yes i do realize the formula was faster than both of them but that is the sleeper bare bones model or it was until the started adding all the luxury stuff to it too. hope this makes sense. and its just my opinion besides i think the GTA rocks but if i was in the market for a thirdgen GTA i would also keep my eyes open for a TA that was loaded performance wise like the GTA and probrably swap seats for either new ones or GTA seats. i dont need all those luxury options. i hate leather. TINFY

 

The point is, very few TAs ever got the L98. In Canada, the vast majority of the L98 TA/GTAs were in GTAs. L98 in a TA is rare.

As for performance difference; very little. Your talking a 10th of a second which is nothing. A good launch can easily take care of this insignificant differences.

I will have to dig out a Magazine test of 5 Firebirds in 1991. The L98s (GTA vs Formula) was less than a 10th of second difference. So all this hub-doo about "which model is faster or quicker" is really quite moot. A 10th of second does not get me excited.

 

thats true a tenth doesnt matter to me that much either. no way am i removing my sound system to go a tenth quicker. i guess it just comes down to personal opinion just like everything else. i dont know i just think flagship models of a performnace car should out perform all other models in the line up giving it a true reason to be the flagship model other than price tag. TINFY

 

It seems the "strippers" are the "performance" version these days. Look at the Vette with it's coupe or the older Fox Based Mustang with the lighter LX models.

Of the 1989 TTA (better known as the white GTA without GTA badges).

 

true true it seems the strippers always were even from the begining with the max wedge dodges, no option GTOs and chevelles. we could go on and on about this. some people want luxury with there performance others dont. me i just want the choice of options. like it used to be. TINFY

 

AHEM! J/K The only dif between my T/A and a GTA is seats, stereo, heat extractors, badging & rim color. I have all the GTA Mecahnicals. At first I wanted a GTA, but when I found this Sleeper, I could not resist. I truely think that I have something rare (maybe more rare than a 89 20th T/A).

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My 1989 Trans Am- See my Window Sticker
1995 GMC Sonoma Window Sticker
Friends DON'T let friends drive rice
Kills:94 Talon TSi AWD, 94 5.0L Mustang GT, 2000 Xtreme 4.3L, 93 Talon,87 Buick T-Type 3.8L SPFI Turbo

[This message has been edited by karfreek (edited March 13, 2001).]

 

From my understanding, all the GTA package was supposed to be was a sophistocated (SP?) T/A. I don't think many B2L/L98 T/A's were built because the GTA over shadowed it, and in 89 the availabilty of the L98 in the T/A was given 2 sentences in the large brochure. I see what you are saying, but dont necessarily agree. Just my .02

Jay

 

Karfreak why do you think your trans am is a sleeper?

 

Because many people are under the impression that the 350 was only for GTA's & Formulas, and think that T/As only got 305's. I know when I see a T/A I think 305, even tho the 350 was available, and I own one with a 350. Many people have disputed the 350 in my car, but you cant agrue with the vin, invoice, & RPO codes.

Jay


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My 1989 Trans Am- See my Window Sticker
1995 GMC Sonoma Window Sticker
Friends DON'T let friends drive rice
Kills:94 Talon TSi AWD, 94 5.0L Mustang GT, 2000 Xtreme 4.3L, 93 Talon,87 Buick T-Type 3.8L SPFI Turbo
Member WWW.TRANSAMGTA.COM

[This message has been edited by karfreek (edited March 20, 2001).]

 

Cool car Karfreek. You DO have a rare T/A.