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Ok I know that the Gen III's are the Ls1 and Ls6 motors. I have a 1988 350 2 bolt roller. WHAT is it called. Is it an LT1, LT4, ro what? What is the L98? Help me out, new to the game. Can I use any 383stroker 1 peice rear main crank?? Like the ones in the gen II motors.
you have the same motor that my dad gave to me #'s match and all. i also would like to know more about the motor. thanks
oh and mine is an 89 2 bolt roller.
To add its a GEN I 1pc rear main seal, it may or may not be a roller block. Meaning that it has tapped bosses for the lifter hold down spider.
__________________ LT1 headed LG4 305 beast! Comp Solid lifter XS-262-10S, 1.6 Roller Rockers, 10.2:1, Holley 4160 600cfm, modded Weiand 7502 intake to fit LT1 heads____ Custom cylinder head cooling. Weiand 8208 Short Water Pump____TH-350 3 series 3.73 with 2 series posi and spacer____ Hedman Hedders 1 5/8 headers and Y-pipe 3in Exhaust, Dynomax 3" Bullet muffler ____Moroso Ultra 40 Wires ACCEL HEI Super Coil ____Competition Engineering 3120 Bolt-on SFC's____Homemade: Wonderbar, solid tie rod sleeves, Aluminum LCA and Panhard Rod with spherical rod ends, alternator and PS bracket, Strut tower brace, and Decoupling torque arm with telescoping link.
3000lbs
"The liberty of a democracy is not safe if the people tolerate the growth of private power to a point where it becomes stronger than their democratic State itself. That, in its essence, is Fascism - ownership of government by an individual, by a group or by any controlling private power."
-FDR
"If this were a dictatorship, it'd be a heck of a lot easier, just so long as I'm the dictator."
-- President George W. Bush
During a photo-op with Congressional leaders on 12/18/2000.
Originally posted by paul5.0 Ok I know that the Gen III's are the Ls1 and Ls6 motors. I have a 1988 350 2 bolt roller. WHAT is it called. Is it an LT1, LT4, ro what? What is the L98? Help me out, new to the game. Can I use any 383stroker 1 peice rear main crank?? Like the ones in the gen II motors.
You said it, it's an L98 a late GM Gen I small block (85-91,) as is the LT1 (1970-1972 high 11:1 compression.) In 92' GM created a new genearation small block and reused the LT1 engine code.
The L98 is a 1-piece rean main seal, butI don't think you can use a Gen III crank in a Gen I.
You have a Gen I 1pc rear block. If it was a 350 in a plastic pig or metal sow with TPI on top, then you could call it an L98. But is still a Gen I, 1 pc. rear block.
Some of the blocks were 2 bolt, some were 4. Some had the bosses in the valley tapped as well as the holes tapped for the cam retaining plate, others did not.
You can make any block a 'roller' block, it's not really a designation, whereas the rear main configuration and generation is.
A Generation I block is anything from the beginning of the small block except the LT1 (LT-1 with hyphen is the 70-72 RPO), LT4 and the L99. Those are Generation II blocks because they use reverse flow cooling.
The LS1, LS6, LS2, and whatever else all the truck engine codes are are Generation III.
Well technically, unless it has the aluminum heads, it's just another 350 with TPI and not an L98. I can't remember what RPO code they gave the iron head TPI motor in the Fbody's but it's not L98.
If the motor is original to the car it will be a Roller Block, Roller Cam, Iron Headed 350, with the 1 piece rear main seal. The heads will have the "Offset" bolt pattern, and I *THINK* they should be center bolt.
If you are looking to by a rotating assembly for it, anything with a 1 piece main will work, unless you go crazy with the stroke, in which case you will need to clearance the block in some spots.
Well technically, unless it has the aluminum heads, it's just another 350 with TPI and not an L98. I can't remember what RPO code they gave the iron head TPI motor in the Fbody's but it's not L98.
What, huh? The F-bodies got a 083 iron head L98 350, Corvette Y-body for Al 113 Al L98 heads.
__________________ LT1 headed LG4 305 beast! Comp Solid lifter XS-262-10S, 1.6 Roller Rockers, 10.2:1, Holley 4160 600cfm, modded Weiand 7502 intake to fit LT1 heads____ Custom cylinder head cooling. Weiand 8208 Short Water Pump____TH-350 3 series 3.73 with 2 series posi and spacer____ Hedman Hedders 1 5/8 headers and Y-pipe 3in Exhaust, Dynomax 3" Bullet muffler ____Moroso Ultra 40 Wires ACCEL HEI Super Coil ____Competition Engineering 3120 Bolt-on SFC's____Homemade: Wonderbar, solid tie rod sleeves, Aluminum LCA and Panhard Rod with spherical rod ends, alternator and PS bracket, Strut tower brace, and Decoupling torque arm with telescoping link.
3000lbs
"The liberty of a democracy is not safe if the people tolerate the growth of private power to a point where it becomes stronger than their democratic State itself. That, in its essence, is Fascism - ownership of government by an individual, by a group or by any controlling private power."
-FDR
"If this were a dictatorship, it'd be a heck of a lot easier, just so long as I'm the dictator."
-- President George W. Bush
During a photo-op with Congressional leaders on 12/18/2000.
www.goingfaster.com/spo/formhist.html
(It's not just a camaro thing - The most powerful engine option in 1987 was of course the B2L 5.7 liter OHV V8. This monster was tuned port injected and produced 225 horsepower at 4400rpm and a hefty 330 lbs.-ft. of torque at a lowly 2800rpm. The B2L was only available with the 700R4 automatic transmission.)
I could keep going, but I do have some better things to do with my time. If you want to say it is a baseless internet rumor, "That is sweeping the net"... that's fine.
Anyone here can go to their favorate search engine, type in b2l, and see that countless reputable sources credit it as an engine code for the TPI 350 put into the Fbody. Any further arguement from you will be had with yourself
B2L/L98 V8 5.7L 4.00 X 3.48 230 @ 4400 330 @ 3200 TPI 16 9.3:1 IZ (Single exhaust)
(350)
B2L/L98 V8 5.7L 4.00 X 3.48 240 @ 4400 345 @ 3200 TPI 16 9.3:1 IZ (Dual exhaust)
L98 is the GM universal code for a 350 with tuned port fuel injection. All 350-cid 3rd Generation Camaro's have L98. B2L is the GM code for the L98 in a thirdgen. When you buy a 350-cid 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 they used different accessories, and accessory brackets than a vette. The 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.
The B2L was an options package, much like B4C, B4Z and dare I say Y84. The factory needs to know what goes with your engine. If you don'r really believe us, well, feel free to call GM historical and leave us the hell alone. I'm more apt to believe GM over you.
B2L = the package that installed it into the car; includes things like the oil cooler, gear selection, etc. (each of which individually has its own RPO as well)
__________________ "So many Mustangs, so little time..."
Originally posted by GOY I see - well I wonder how many third gens are running around out there with factory 350's without the RPO B2L on the sticker....
None. I'd have to say your RPO decoder is false.
I could keep going, but I do have some better things to do with my time. If you want to say it is a baseless internet rumor, "That is sweeping the net"... that's fine.
Anyone here can go to their favorate search engine, type in b2l, and see that countless reputable sources credit it as an engine code for the TPI 350 put into the Fbody. Any further arguement from you will be had with yourself
Its not true, because I dont want it to be!! :lala: :lala:
[quote]Originally posted by GOY
[b]Well technically, unless it has the aluminum heads, it's just another 350 with TPI and not an L98. I can't remember what RPO code they gave the iron head TPI motor in the Fbody's but it's not L98.
The L98 350 TPI used in all 1985 and most 1986 Corvettes (when the convertibles were re-introduced) had what kind of heads?
Hint: Not aluminum.
The aluminum heads were standard across the entire Corvette line (coupes and convertibles) beginning in 1987.
1985 and a good portion of the 1986 Corvette TPIs were called L98.
No aluminum heads at that point. Hmmm.
Partial 1986 Corvette and 1987 through 1991 Corvette with aluminum heads were still called L98. Hmmm.
So, for the sake of arguement, wouldn't the f-body L98 TPI be more closely related to the ORIGINAL L98 from the Corvette than the later aluminum headed L98 Corvette versions?
jms
p.s. Not ALL Chevy engine codes began with L. Just most of 'em.
What was the code for the all-aluminum 427 in 1969? Or even the 32-valve all-aluminum super 'Vette from the late 1980s to early 1990s?
p.s. Not ALL Chevy engine codes began with L. Just most of 'em.
What was the code for the all-aluminum 427 in 1969? Or even the 32-valve all-aluminum super 'Vette from the late 1980s to early 1990s?
The thing you don't get, GOY, is why would L98 RPO code be on the sticker if B2L was the engine code?
Explain that.
This is right up there with Speed Pro pistons. I bought a kit that included H345NCP+30 hyper pistons.
I can't count the number of websites I've been to, both aftermarket suppliers and message boards similar to this one, that said the compression height is 1.54"
I measured mine and got 1.564". Later I will have them pressed on and measure the deck height of my block. If the piston sits .040" or more below the deck, I have either the thickest deck on any small block ever made (stock production) or I need to learn how to measure compression height.
Again, don't believe everything you read on the internet.
Next you'll be trying to tell us that an 350 5spd combo was available from the factory.
Originally posted by GOY I see - well I wonder how many third gens are running around out there with factory 350's without the RPO B2L on the sticker....
None. I'd have to say your RPO decoder is false.
But I will say, I loved your point of "Notice it says Performance Package and Engine Package?"
Why yes my dear Watson - I didn't notice it said ENGINE PACKAGE.... as oppossed to a car not having any engine package I suppose.
Originally posted by ME Leigh No, see above it is a performance package, where a L98 and some other performance goodies were installed.
I would guess that "performance" is a term GM used loosely. From my understanding the b2l and l98 codes went hand in hand in the fbodies. Signifying the iron heads and other options neccesary for the 350... I'd assume that the main point of the b2l code would be the iron heads as opposed to the vettes later aluminum ones. Could be wrong though.
Originally posted by iansane I would guess that "performance" is a term GM used loosely. From my understanding the b2l and l98 codes went hand in hand in the fbodies. Signifying the iron heads and other options neccesary for the 350... I'd assume that the main point of the b2l code would be the iron heads as opposed to the vettes later aluminum ones. Could be wrong though.
ZL-1, 1969-70 Corvette, 430 bhp, Identical features to the L-88 engine except all-aluminum cylinder block.
454... "
Granted, the 1970 Corvette reference seems a bit odd on the ZL-1 since only a handful of ZL-1 'Vettes were built (argued to be 2) compared to the 69 count 1969 Camaros with the ZL-1.
Throughout this reference book are numerous mentions to the ZL-1 without one time (I can find) referencing another Chevy code (as L98 to B2L).
(2) "Chevy Super Sports 1961-1976" by Terry V. Boyce, copyright 1981, page 157, fifth paragraph: "Some of the most exotic of all COPO Camaros were built during 1969. Factory orders for the nation's top drag racers-included Camaros with L72-type 425-hp 427's and even an incredible run of fifty ZL-1 aluminum-block 427 Camaros were reportedly assembled..."
(3) "Chevy Super Sports 1961-1976", page 174 (this section lists basics about each Super Sport model and RPO#s)---1969 Camaro, L48...350/300 hp; L34...396/350 hp; L78...396/375hp; ZL-1...427/425 hp...
(4) Many, Many, Many magazine articles in which I have as yet to see ZL-1 grouped with another code such as L98/B2L is grouped.
(5) Another "Chevy Super Sports 1961-1976" highlight is the 1963 Impala Z11 427 (based on the 409) on page 31. The RPO # is listed as Z11. On Page 170 the various RPO#s for the '63 Chevy Impala lists several "L" numbers for engines just before listing the Z11.
(6) As mentioned above, I have bought and kept (over my 48 years) many auto magazines and books (over 3000 at last count) and I cannot remember ZL-1 being anything but the engine code for the all-aluminum 427 mentioned above.
However, I do welcome any proof otherwise on this issue (as stated that ALL Chevy engine codes start with 'L").
I am not so hard-headed as to believe I cannot be wrong. In addition, I would like to be positive in this discussion.
Now, I have offered my proof (and more if needed) that NOT ALL Chevy engine codes begin with "L".
Your turn (and I won't be upset if you do prove me wrong).
jms
p.s.-The 350 TPIs of the 1980s thru early 1990s are L98s, not B2Ls. But I could be wrong there, too
The AllData for my 88' RPO codes show:
B2L as Performance Package, Engine Package V8 5.7L PFI (Port Fuel Injection?)
L98 engine gas, 8 cyl, 5.7L MFI (multi-port injection?)
It did give instructions on how to decode the engine using the 8th vin number and the engine RPO code it's example was Y, LV2 is equal to 307Y, OK how did they get 307 when their list of RPOs don't show the engine size? Ok it can be inferred from the Liter size, but not everyone knows this. Doesn't PFI and MFI mean the same think, if not what's the difference?
What I was looking for is B2L, L98, 350cid, 5.7L, and TPI, all on the same line.
So I searched for engine code stamp & TPI, and found this Website. Chevy Engine Code Menu there are others.
I found a lot of L98,AT,8 in the application & VIN columns, and TPI in the BBLS (barrels?) column, but didn't find Camaro, IROC, in the same row in the Body/Comments Column. So I'm not sure what is the suffix for my 88' IROCZ. It's seems tht this data is incomplete, and it doesn't list the source, none of the sites do.
I've come to the conclusion that RPOs can be made up of other RPOs that can be further coded to suite the need.
You know what S**** this, I'mm getting a headache.
Heres the window sticker for a 88 iroc B2L 350. No mention of L98. The only similarities between the two engines are the cubic inch displacement,the advertized horsepower ratings and the induction system. The heads, crank, block, rods ,pistons and yes the cam are the same as those used in taxi cabs and light duty trucks.
Originally posted by 884+3 Heres the window sticker for a 88 iroc B2L 350. No mention of L98. The only similarities between the two engines are the cubic inch displacement,the advertized horsepower ratings and the induction system. The heads, crank, block, rods ,pistons and yes the cam are the same as those used in taxi cabs and light duty trucks.
So if I follow your thinking, the LT1 in my 93 isn't an LT1 because it has some different parts on it for the F body. What's the equivalant B2L option code for LB9 cars?
Originally posted by 884+3 Heres the window sticker for a 88 iroc B2L 350. No mention of L98. The only similarities between the two engines are the cubic inch displacement,the advertized horsepower ratings and the induction system. The heads, crank, block, rods ,pistons and yes the cam are the same as those used in taxi cabs and light duty trucks.
My 1988 IROCZ console sticker that I posted list 69 RPO codes, including the B2L, and L98.
Your window sticker only list 1/4" of those, and I'm sure the window sticker on my car when it wa new didn't list them all either.
yea, all 4 of my thirdgens had 60-80 RPO codes, that build sheet dosen't have enough to be a complete list of them. by the way...all pre-80's iron blocks started with a L and all alluminum blocks started with a Z....in the early-mid 80's ('84 comes to mind...I'm not 100% sure though) they were all consoladted to start with a L. codes that start with a B, from my experance, are profromance packages, but it's defenatly not an engine code
__________________ 84 Z-28 in the prosess of re-build:
383, steel crank, forged pistons 4 bolt block .040 over
comp cams nitrous XP 288HR
Adv dur 288/315
Dur@.050 236/248
LSA 113
valve lift .520/.540
"quiet" gear drive
polished and ported trick flow 23* heads
comp P/N 26918-16 beehive valve springs
steel full roller rockers
edelbrock pro-flow 1000 CFM EFI port mached to heads
Venom 36 lb injectors
edelbrock nitrous sys, 150 shot
hooker 2210 1 3/4 pri headers
powermaster starter
powermaster alternator, 160 amp
'97 T-56 transmission
centerforce dual friction clutch
pro 5.0 shifter
richmond 3.73 gears
eaton posi
spohn K-member
spohn "wonderbar"
spohn torque arm/crossmember
spohn lower control arms
spohn A-arms
spohn panhard bar
spohn subframe connectors
dual exauast, 3" up to cut outs
nordskog digital dashbord
trippel gauge pilar mount
digital fuel press.
digital nitrous pressure gauge
digital oil temp gauge
I know this is an old thread but I didn't want to make a new one for somthing so stupid. My motor is a 5.0 L v8 4 bbl what does this mean? Meaning what size and what is 4bbl. I think its a 305
5.0 L (liter) is displacement, meaning 305 cubic inch
V8 meaning it's 8 bores/pistons (4 on each bank)
4 bbl meaning it has a carb with 4 butterflies/venturies whatever you want to refer to them (openings).
Ok thanks that's what I thought but assent sure. I also didn't know that 86 models had carbs I thought that is when they agent to throtle bodies. Am I wrong or where they just starting to change over?
Well technically, unless it has the aluminum heads, it's just another 350 with TPI and not an L98. I can't remember what RPO code they gave the iron head TPI motor in the Fbody's but it's not L98.
If the motor is original to the car it will be a Roller Block, Roller Cam, Iron Headed 350, with the 1 piece rear main seal. The heads will have the "Offset" bolt pattern, and I *THINK* they should be center bolt.
If you are looking to by a rotating assembly for it, anything with a 1 piece main will work, unless you go crazy with the stroke, in which case you will need to clearance the block in some spots.
Ok thanks that's what I thought but assent sure. I also didn't know that 86 models had carbs I thought that is when they agent to throtle bodies. Am I wrong or where they just starting to change over?
The 4-barrel carbs were still used on the '87 LG4 F-cars, and the '88 Caprice still offered the 4 barrel carb on a few select options, though I forget the details. Probably the police 350 / 5.7L, because most got the LO3.
Is that with regard to the iron headed TPI 350 motors in the turdgens? Mine had a designation of L98, just like every other one out there. B2L was a package designation, that's it, nothing more.
