84Z28_5.7ltr_V8

Was the 5.7 liter high output engine in the 84 camaro Z28 a 305 or a 350?? Cause i have a 5.7 liter 350 V8 in it but the engine was totally changed before i bought it.

84Z28_5.7ltr_V8

by the way it looks like **** because i turned the resolution down so i could put it in this post. THANKS

curt86iroc

umm, yeah. the 350 wasnt available until 87 in the iroc or any camaro for that reason. there were 2 305's in 84. the LG4 or the L69. the L69 was the high output motor for 84...190 hp to 150 for the LG4 not to mention better gearing....your 350 HAS to be aftermarket of somekind.....

1991tealRSt-topGuy

a 5.7 litre engine is a 350 cubic inch engine
a 5.0 litre engine is a 305 cubic inch engine


expressing an engine in litres rather than cubic inches is metric

Mark A Shields

Yep.

iroc22

Yeah they're both measurements of the engine's volume. Same thing. Oh BTW, was that pic of the car really necessary in determining the engine?

Mark A Shields

I guess he doesn't know how to use a sig yet.

84Z28_5.7ltr_V8

test:lala:

84Z28_5.7ltr_V8

my account is so ****ed, anyways i wrote a huge thing then my account ****ed me so ill just talk about something else. Would my car have a butterfly valve in the exhaust because i think its broken. it clicks. I know it isnt a lifter, but it might need a rocker arm adjustment on the driver side. Im going to have to check it out i guess. Oh and anyone know where i could get carpet that looks exatcly like mine???
i wonder if i could buy it at a chevy dealership...


Anyone have the Z28 decals that go on the side ground effects for sale?? preferably the charcoal color.. or blue if they exist.

jfox55

Mine was the 305 HO. But is now a 350. Like everyone said, in 84 they didn't put a 350 in the camaro. If it says 5.7, it is not the original engine. Is yours carb or fuel injection???

brodyscamaro

your exhaust ticking means you probably have an exhaust leak

RB83L69

There is also a valve in the exhaust, down low on the right; it closes when it's cold, to force exhaust from the right cyls up over the top of the motor under the carb and then out the pipes, to preheat the intake. they can make quite a racket, more of a banging than a ticking though.

SinthetikIroc

iTrader: (1)

86 had l98 engines. jus super rare

iroc22

No they didn't.

SinthetikIroc

iTrader: (1)

i have reference books that list it as being true

curt86iroc

chevy made 50, yes...exactly 50 1986 irocs with the l98 engine. these cars were prototypes for the 87 model year. extremely rare.................

iroc22

Omg, ok you two keep thinking that then.

curt86iroc

iroc.fbody.com

http://www.f-body.org/tech/tech.htm


both state that 50 irocs did come equipped with the L98 as prototypes back in 86...

SinthetikIroc

iTrader: (1)

ill scan my chiltons manual page. that lists all engine sizes etc for all years 82-92 and you shall see that its true

Matt86t/a

sorry iroc22, but even the Third Generation (1982 - 1992) Technical Data part of this website says that exactly 50 L98 were produced in '86 in irocs. Just stating the facts.

~Matt

iroc22

Yeah because Chilton's doesnt ever make a mistake.

No one I've come in contact to has ever verified to actually knowing these cars exist. That 50 prototype number has been floating around the whole internet. Each site just copies the other one's information (wow copyrighting sure works). The very few prototype Camaros with L98's were never released to the public and most of them were actually destroyed because they couldn't receive EPA status for them and it was pointless to keep around a bunch of metal that will collect dust. If you research this topic, you'll find that GM has destroyed about 90% of all their prototype cars over the years. The one's that were kept were the ones from the 60's because they usually only made 1 prototype back then and there wasnt any kind of EPA regulations. They now just sit in the GM museum though.

SinthetikIroc

iTrader: (1)

if they were destroyed it doesnt mean a thing. you have to make something to destroy something. so yes. there was an 86 l98 camaro. thank you. you said it yourself.

RB83L69

I agree with Iroc22, even if all 50 of those cars still existed, they're utterly meaningless in terms of real world experience. You're not going to run into one, you don't have one (at least I've never seen anyone post on this BBS who even claims to), nobody you know has one or has ever had one, so those 50 don't impact anything any of us are doing here. It's totally pointless to get into this stupid argument about "yes there were" "no there weren't" like a bunch of 8-year-olds.

But that's got nothing to do with the topic anyway. The guy asked about 84, and I think there's little point in digressing to the "famous 50" in 86 argument. The L69 HO motor was a 305, in every year, whether 350s were available in 86 or not.

At this point, I don't care whether Chevy made a 350 Camaro in 86 or not, I do know that I would have bought one if I could have, but I couldn't. They told me so. So, in practical terms, they didn't exist, even if there were prototypes (like there was really something to prototype about that) or whatever.

Guest

Off subject again, sort of...

They did make 86's with 350's in them. How many? I dont know. 50 sounds reasonable. There were some, no question. I have a magazine at home where they tested a 350 Camaro that was printed and at my door before any 87's were produced. Kinda makes it hard for that car to have been an 87 considering the delay from them driving the car to actually getting it in print and shipping it out. Were they prototypes only? Probably. GM still made them no matter what excuses you make for if any existed or not, for general public consumption or whatever.

iroc22

The point Im tryin to make here is these two guys made it like there was a L98 available to the public that was a prototype. GM prototypes don't fall into the hands of "normal" people. If they aren't destroyed, then GM keeps them. No one out there owns a true 86 L98. I'm not arguing whether or not there was prototype 350 IROCs, I'm arguing whether or not there's 86 L98 IROCs still out there.

SinthetikIroc

iTrader: (1)

all i states was there was some. if only one left in existence. and gm has it. just because its not public doesnt mean its not rare. ill argue with you all day i dont care. if you feel the need to

omnipotentgoku

iTrader: (1)

seems I have one of the 50. I have an 86 IROC 5.7 L98 ...

RB83L69

Right. That's what they all say. Post the first 10 digits of your VIN.

Somebody tried to convinve everybody on the History board that he had one, with a title that had been Photochopped... it was a pretty crude forgery, actually.

Guest

I agree. The chances of you having a real 86 Camaro with an L98 under the hood (that wasnt swapped in after it was sold) is somewhere between slim and none. Thats just how it is.

Its possible someone has one. Seems to me theres a guy overseas who resurrected a ZR1 prototype from almost nothing. Not that a Camaro would get that sort of attention but who the hell knows. Stranger stuff has happened.

BillZ28

I saw a video of one of the 86 L98's, it was running and they got some shots in the engine bay. Looked like old footage and I don't know what ever happened to the video.

omnipotentgoku

iTrader: (1)

I stand corrected, just spoke with the guy I bought it from, its an 87, not an 86.

Mark A Shields

raptoryfm660r has the video of the '86 350, but like said, these weren't not sold to the public.

Grim Reaper

GM made a LOT of test mules that never made it to actual production. In fact, there was a magazine articel (I'll try and find it), that talks about the various prototypes that GM made, but should have sold to the public.

How about a 502 Impala SS? (I think 1994 or around there). There was also one with a V12 (taken from another manufacturer BTW) C-4 Vette and (believe it or not) a mid-80s Citation with a V6 up front AND rear - it had two motors.

Did you know the first SBC GM installed in a 1953 Chev? How about the volumes of GM prototypes they have produced for car shows over the years? And how about those mid-engine Vettes that were tested in the 1960s, 70s and 80s (and probably still).

Yes, there are a lot of prototypes that GM has made over the years. Unfortunately thegeneral public seldom sees or hears about them. Yes GM made them. But unless GM offers them to the general public (even in some limited fashion like a COPO from the 1960s), I don't consider them a production car.

I would say the 1992 Firehawks are "on the line" and it can be debated either way as to which side of the line they should be on. I consider the 92 Firehawks as production because the general public could order one. But I don't feel the 50 1986 L98 Camaros qualify by the simple fact the "average Joe" couldn't plunk his cash on the dealer's counter to buy one. If the general public can't buy it, then it's not production - just a prototype.

SinthetikIroc

iTrader: (1)

its still a rare car regardless. im not stating anything other than this. i never once said it was available to anyone. all i said was they did have an 86 model with the l98. where,who or what happened to it is a whole nother story. that any of us cannot tell because we really dont know. if someone really wanna be the know it all king of thirggen techboards call gm and talk to someone about it.

iroc22

They didn't have a 86 model with a L98. That's the whole point I'm trying to make. It was just a prototype that that is totally irrelevant to an arguement about whether or not there is a 86 L98 F-body that someone can obtain (or repair, according to your Chilton's manual )

SinthetikIroc

iTrader: (1)

i didnt say you can repair them. and yes it IS an 86 model l98 prototype or not. 86 body with a l98. firggin internet people.

SMOKEN

all you guys with this l98 crap first there are no 86's 350 second get yourself the 86 305 tpi and put a decent cam in and then go find a friend with a 87 350 tpi and race him i garentee ypo the 86 305 come up with the win.

curt86iroc

you're gonna have to do more than put a decent cam in an 86 tpi auto to keep up with an 87 350.......

Dan91Z

i'm not sure on this, but i think it was a chevette prototype with the dual 200 hp high output v6's. Anyways.. with it being either a citation or chevette, they must have done some major work to get the cardbaord floors to hold a engine :-)

84TAProject

I was reading an old motor trend I have with "secret chevies" in it from 1992. It had a V-12 Corvette that had to be lengthened to fit the motor. It had like 750 horsepower, and the motor was based on a bigblock and it was something like 10.2 liters. But the motor in it was available from falconer (i beleive) for use in trucks for like 45000 a pop. Imagine that in an fbody. Id be willing to deal with lengthening the front to fit that beast in my car.

Remember theres a lot of people who dont know that much about cars. When I got my T/A the guy told me it had a 350 because 350's came with 4bbl and 305's had 2 bbls. It was a really good deal so I just bought it and was done with it, knowing full well what the true destiny of that LG4 was.

Theres always odd ***** to have been rumored to come out of the factory. I knew a kid who repeatedly claimed his TBI RS had a factory 350. Even after selling the car he beleives it. I wish he still had it. Id show him just how fast a "real" 350 is. The onyl real oddball factory car I knew about I heard about from my father. He used to work for GM, and someone he knew knew someone high up and wass owed a favor. So he got a TPI 350 in a monte SS. Thats really all I know about it, so dont kill me, but this is by far the most reliable "bs car" story I know.

Ward

iTrader: (1)

Post *****!!!!