L69
Thread Starter
Senior Member
Joined: Jun 2007
Posts: 428
Likes: 2
From: Elizabethtown,Ky
Car: 1984 camaro z28
Engine: L69 H.O
Transmission: 700r4
Axle/Gears: 3.73
L69
How do you think a completely stock l69 H.O would stack
up against some newer model cars do you think it will hold its own or would it be beaten horribly.
up against some newer model cars do you think it will hold its own or would it be beaten horribly.
Senior Member
Joined: Apr 2001
Posts: 940
Likes: 0
From: Diamondhead, MS
Car: 89 20th Ann. TA
Engine: Turbo 3.8 V6
Transmission: 200 4R
Axle/Gears: 3.27
Re: L69
I had a 84 Z28, HO 5spd. It ran 15.2 completely bone stock back then. I'm sure one wouldn't run that well with age and miles on them now.
But it really isn't considered fast now. Lots of 4cyl cars can run that number now. Pretty sad but a fact.
But it really isn't considered fast now. Lots of 4cyl cars can run that number now. Pretty sad but a fact.
Joined: Jul 2003
Posts: 10,538
Likes: 206
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: L69
Originally Posted by blackandgoldl69
How do you think a completely stock l69 H.O would stack up against some newer model cars
Thread Starter
Senior Member
Joined: Jun 2007
Posts: 428
Likes: 2
From: Elizabethtown,Ky
Car: 1984 camaro z28
Engine: L69 H.O
Transmission: 700r4
Axle/Gears: 3.73
Re: L69
Not in a million years would i sell my camaro. Sorry about all the dirt this is an old pic i have cleaned it up since then. so far the only thing i have done to it is put on an accel super coil and a set of flowmasters. if i ever get beat by a 4 cyl it will be time to start modding
Joined: Jul 2003
Posts: 10,538
Likes: 206
From: NYC / Jersey
Car: 1990 Trans Am GTA
Engine: Turbo 305 w/MS2
Transmission: 700R4
Re: L69
Originally Posted by blackandgoldl69
if i ever get beat by a 4 cyl it will be time to start modding....
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Joined: Oct 2002
Posts: 906
Likes: 42
From: Hamilton Ontario Canada
Car: 1985 Camaro IROC-Z
Engine: 350
Transmission: GForce T-5
Axle/Gears: 10 bolt 3.73 posi
Re: L69
When I started out with the 305, I added a small compucam, 210, 216 durations, weiand dual plane, L69 air cleaner, hedman headers with ypipe, and flowmaster catback.
It ran high 15's. Yuck.
Save for a 350. Now I run low 13's on street tires.
It ran high 15's. Yuck.
Save for a 350. Now I run low 13's on street tires.
Thread Starter
Senior Member
Joined: Jun 2007
Posts: 428
Likes: 2
From: Elizabethtown,Ky
Car: 1984 camaro z28
Engine: L69 H.O
Transmission: 700r4
Axle/Gears: 3.73
Re: L69
well i want to keep the 305 but still get decent power.Im only 16 so i think for now the 305 will do fine. is there anyway to get a little more out of it without breaking the bank.
Junior Member
Joined: Apr 2007
Posts: 21
Likes: 0
From: Chicago
Car: '84 Camaro Z28
Engine: L69
Transmission: 700R4
Axle/Gears: 3.73
Re: L69
If you got to chevyhiperformance.com and click on tech articles and then go to boly-on barrage theres is an article about the 84 Z28 HO. They added a cat back exhaust, high flow converter, headers, intake, heads, cam and an air filter which gained them about 50 rear wheel horsepower and it cost them about $3200. The last page of the article has the part #s for what they used. Any of the mods in their would get a bit more power out of your.
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Joined: Oct 2005
Posts: 1,833
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From: Cincinatti OH
Car: 1991 L03 700r4 RS
Engine: 1987 WS6 Trans AM Lb2
Transmission: Th350 red neck Performance 3k stall
Axle/Gears: 95 Mustang 8.8 built with 3.73s
Re: L69
With just a cam swap, porting the heads, and a nice dual plane intake you'll really wake the car up. You'll have to modify the carb to keep up with it but it'll work fine. The exhaust mods should be considered mandatory on these cars.
TGO Supporter
Joined: Jan 2005
Posts: 1,768
Likes: 2
From: Gambrills, Md
Car: clapped out 84Z
Engine: 355 efi roller
Transmission: tremec TKO
Re: L69
15.50's @ 88
Mild cam, dual plane intake, shorty headers, 3" cat-back (no cat), and tuned Q-jet:
14.10 @ 98
The look on the guys face in a 92 LT1 vette I just smoked:
priceless.
150k on the engine when I ran the 14.10, and I pulled it the next day for a j/yard 350 swap. Same bolt-ons, similar cam, 13.60's with the 350.
As far as getting your *** kicked, some grandma in a V6 camry or accord will either make you work for it hard or hand you your lunch. I'd race on an empty stomach if I were you.
Senior Member
Joined: Apr 2001
Posts: 940
Likes: 0
From: Diamondhead, MS
Car: 89 20th Ann. TA
Engine: Turbo 3.8 V6
Transmission: 200 4R
Axle/Gears: 3.27
Re: L69
Cheap stuff would be, going from memory:
K&N air filter
Remove charcoal ring in filter housing(free)
Thermostat
Chip
Crank up the timing. I used to run 14* initial. I think stock is 6*, can't really remember. Might be only able to 10-12 depending on the condition of the everything(free)
New plugs, wires, cap, rotor, tune up stuff basically.
That'll make a pretty decent difference for not a lot of money.
I ran with the above mods plus no air pump or cat. With 235/60/15 Euro T/A's, I scored a 13.89. But the car was still only a couple of years old at the time.
K&N air filter
Remove charcoal ring in filter housing(free)
Thermostat
Chip
Crank up the timing. I used to run 14* initial. I think stock is 6*, can't really remember. Might be only able to 10-12 depending on the condition of the everything(free)
New plugs, wires, cap, rotor, tune up stuff basically.
That'll make a pretty decent difference for not a lot of money.
I ran with the above mods plus no air pump or cat. With 235/60/15 Euro T/A's, I scored a 13.89. But the car was still only a couple of years old at the time.
Last edited by TTA 1387; Jun 29, 2007 at 12:15 PM.
Thread Starter
Senior Member
Joined: Jun 2007
Posts: 428
Likes: 2
From: Elizabethtown,Ky
Car: 1984 camaro z28
Engine: L69 H.O
Transmission: 700r4
Axle/Gears: 3.73
Re: L69
thanks for all the info. i will see what i can do. my motor is still in great condition and only has 62000 miles on it.
TGO Supporter
Joined: Jan 2005
Posts: 1,768
Likes: 2
From: Gambrills, Md
Car: clapped out 84Z
Engine: 355 efi roller
Transmission: tremec TKO
Re: L69
The cams in those are famous for wiping lobes. Mine had a couple down with less than 100K on it, and every 305 I've done a cam swap in has had at least one lobe wiped. Good luck and post your times with it still stock.
Re: L69
instead of doing heads/cam and stuff, yank the 305 in favor of a used LT1. put the carb intake and opti delete plate on and run your dizzy and carb. pop a cam and headers on there and make ~340rwhp or whatever....
Joined: Jan 2005
Posts: 10,450
Likes: 508
From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: L69
Why not just pick up a used Vortec 350 from a 1996-2002 chevy truck/van. Slap a nice carb intake on it and a nice little hydraulic roller cam. The GM LT4 hotcam in a Vortec is a proven 425 FWHP.
Re: L69
Supreme Member
iTrader: (3)
Joined: Oct 2005
Posts: 1,833
Likes: 0
From: Cincinatti OH
Car: 1991 L03 700r4 RS
Engine: 1987 WS6 Trans AM Lb2
Transmission: Th350 red neck Performance 3k stall
Axle/Gears: 95 Mustang 8.8 built with 3.73s
Re: L69
How the heck would you work the reverse cooling on an LT1 with a carb and opti block off? How about the Tstat don't you have to remote mount it still? I'de say screw that, and don't swap the motor right yet, flat tappet cams are cheap your heads flow decently already, and an intake can be used on a 350 later on *unless you go Vortec then you'll need a new one*. I say stick with what you have for now, cam it and get a ZZ4 take off intake or a used Edelbrock Performer or Performer RPM. This mixed with headers should be a sweet setup for a while, when it wears out just swap in a 350.
TGO Supporter
Joined: Jan 2005
Posts: 1,768
Likes: 2
From: Gambrills, Md
Car: clapped out 84Z
Engine: 355 efi roller
Transmission: tremec TKO
Re: L69
Mine with 150K on the clock had 38 psi of oil pressure going down the track with 20W50 oil...
I recycled it
courtesy of the local landfill
one day it will be a collectors piece
I decided not to wait until then......
It still ran when we pushed it out of the bed of that pickup........
I recycled it
courtesy of the local landfill
one day it will be a collectors piece
I decided not to wait until then......
It still ran when we pushed it out of the bed of that pickup........
Thread Starter
Senior Member
Joined: Jun 2007
Posts: 428
Likes: 2
From: Elizabethtown,Ky
Car: 1984 camaro z28
Engine: L69 H.O
Transmission: 700r4
Axle/Gears: 3.73
Re: L69
that sucks u should have held on to it. and by the way what oil pressure should it run stock because mine usually sits around the very top of the guage
Senior Member
Joined: Apr 2001
Posts: 940
Likes: 0
From: Diamondhead, MS
Car: 89 20th Ann. TA
Engine: Turbo 3.8 V6
Transmission: 200 4R
Axle/Gears: 3.27
Re: L69

Came back from walking the dog and saw the windows tinted. I was like WTF. Opened up the door and was smoke filled, computer laying on the floor mat, dash drooped down and part of the door panel gone. Insurance didn't want to fix it because it was electrical and would always be problems. When the roll back came, it fired right up and drove it up. It sat at the body shop for about a month and they would start it up and move it around.
RIP in '94. Here are a few pics.
Thread Starter
Senior Member
Joined: Jun 2007
Posts: 428
Likes: 2
From: Elizabethtown,Ky
Car: 1984 camaro z28
Engine: L69 H.O
Transmission: 700r4
Axle/Gears: 3.73
Re: L69
TTA 1387, that would have to suck i couldnt imagine coming home to my cars interior being melted that looked like a super nice camaro too. that makes me sad just looking at it.
Senior Member
Joined: Apr 2001
Posts: 940
Likes: 0
From: Diamondhead, MS
Car: 89 20th Ann. TA
Engine: Turbo 3.8 V6
Transmission: 200 4R
Axle/Gears: 3.27
Re: L69
Yep, I loved that thing. It was first car that I bought. Learned a lot about computer controlled cars with that car. Although I really didn't like the brown color, I had it repainted brown but an S-10 brown. Looked much better than the original brown. The interior was also the brown L/S, but that grew on me and those seats were great.
Went through a couple 5spds with the power it was making. Surprised I never did break the rear.
Definitely a fun car, especially back then.
Went through a couple 5spds with the power it was making. Surprised I never did break the rear.
Definitely a fun car, especially back then.
Supreme Member
iTrader: (1)
Joined: Dec 1999
Posts: 4,335
Likes: 4
From: Mays Landing NJ
Car: 2018 Camaro SS
Engine: LT1 w/Paxton 1500SL
Re: L69
Is that even a word?? 
Sorry, I had to.
----------
Nice times for what you had done.
However I'd be pretty upset if I was the vette owner, not for losing to a thirdgen but for not being able to get out of the 14's with a LT1 vette

Sorry, I had to.

----------
Mine stock:
15.50's @ 88
Mild cam, dual plane intake, shorty headers, 3" cat-back (no cat), and tuned Q-jet:
14.10 @ 98
The look on the guys face in a 92 LT1 vette I just smoked:
priceless.
150k on the engine when I ran the 14.10, and I pulled it the next day for a j/yard 350 swap. Same bolt-ons, similar cam, 13.60's with the 350.
As far as getting your *** kicked, some grandma in a V6 camry or accord will either make you work for it hard or hand you your lunch. I'd race on an empty stomach if I were you.
15.50's @ 88
Mild cam, dual plane intake, shorty headers, 3" cat-back (no cat), and tuned Q-jet:
14.10 @ 98
The look on the guys face in a 92 LT1 vette I just smoked:
priceless.
150k on the engine when I ran the 14.10, and I pulled it the next day for a j/yard 350 swap. Same bolt-ons, similar cam, 13.60's with the 350.
As far as getting your *** kicked, some grandma in a V6 camry or accord will either make you work for it hard or hand you your lunch. I'd race on an empty stomach if I were you.
However I'd be pretty upset if I was the vette owner, not for losing to a thirdgen but for not being able to get out of the 14's with a LT1 vette
Last edited by fly89gta; Jul 1, 2007 at 09:31 PM. Reason: Automerged Doublepost
Joined: Dec 2006
Posts: 346
Likes: 0
From: Western Mass
Car: 1985 Camaro/89 Merkur XR4Ti
Engine: 5.0 305 LG4/2.3 Turbo (180hp/205tq)
Transmission: TH700R4 with Shift Improver Kit/T-9
Axle/Gears: 3.42LT1 Rear/3.64
Re: L69
Cheap stuff would be, going from memory:
K&N air filter
Remove charcoal ring in filter housing(free)
Thermostat
Chip
Crank up the timing. I used to run 14* initial. I think stock is 6*, can't really remember. Might be only able to 10-12 depending on the condition of the everything(free)
New plugs, wires, cap, rotor, tune up stuff basically.
That'll make a pretty decent difference for not a lot of money.
I ran with the above mods plus no air pump or cat. With 235/60/15 Euro T/A's, I scored a 13.89. But the car was still only a couple of years old at the time.
K&N air filter
Remove charcoal ring in filter housing(free)
Thermostat
Chip
Crank up the timing. I used to run 14* initial. I think stock is 6*, can't really remember. Might be only able to 10-12 depending on the condition of the everything(free)
New plugs, wires, cap, rotor, tune up stuff basically.
That'll make a pretty decent difference for not a lot of money.
I ran with the above mods plus no air pump or cat. With 235/60/15 Euro T/A's, I scored a 13.89. But the car was still only a couple of years old at the time.
Senior Member
Joined: Apr 2001
Posts: 940
Likes: 0
From: Diamondhead, MS
Car: 89 20th Ann. TA
Engine: Turbo 3.8 V6
Transmission: 200 4R
Axle/Gears: 3.27
Banned
Joined: Sep 2000
Posts: 1,940
Likes: 2
From: Glendale, AZ
Car: 4 Mopars total
Engine: Pentastar power
Transmission: T/F and New Process
Axle/Gears: Three 8 3/4's & one 9 1/4
Senior Member
Joined: Feb 2006
Posts: 535
Likes: 0
From: ft.wayne indiana
Car: 84 camaro
Engine: 72 chevy 406 sbc
Transmission: 700r4
Axle/Gears: 3.42 eaton posi
Re: L69
still got my l69 stock runs 14.40 just rolled over 100,000 mile with 0 mods and even running a fan blade since electric fan burned up years ago, and no headers she still runs strong, killed many a iroc 350 with it.lol
Banned
Joined: Sep 2000
Posts: 1,940
Likes: 2
From: Glendale, AZ
Car: 4 Mopars total
Engine: Pentastar power
Transmission: T/F and New Process
Axle/Gears: Three 8 3/4's & one 9 1/4
Supreme Member
iTrader: (3)
Joined: Oct 2005
Posts: 1,833
Likes: 0
From: Cincinatti OH
Car: 1991 L03 700r4 RS
Engine: 1987 WS6 Trans AM Lb2
Transmission: Th350 red neck Performance 3k stall
Axle/Gears: 95 Mustang 8.8 built with 3.73s
Re: L69
14.40, one wheel peel, stock L69, 700r4? Something doesn't add up here. You sure the enigne is stock, there's many a 350 block sitting under 305 heads in a 305 engine bay up for sale anymore.
Senior Member
Joined: Apr 2001
Posts: 940
Likes: 0
From: Diamondhead, MS
Car: 89 20th Ann. TA
Engine: Turbo 3.8 V6
Transmission: 200 4R
Axle/Gears: 3.27
Senior Member
Joined: Feb 2006
Posts: 535
Likes: 0
From: ft.wayne indiana
Car: 84 camaro
Engine: 72 chevy 406 sbc
Transmission: 700r4
Axle/Gears: 3.42 eaton posi
Re: L69
not sure i bought motor from a 84 z-28 for 400 bucks 8 years ago put it in my sport coupe and have done nothing to it since
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