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 What is the L67 (Series I)?

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AA
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What is the L67 (Series I)? Empty
PostSubject: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyMon Jan 15, 2007 5:35 pm

The L67 engine began as the Series I Supercharged, one of the last versions of the long-running 3800 series of Buick engines that originated back in 1962 when the car maker unveiled one of America's first V6 engines, the 198 cid "Fireball". The design was created by chopping two cylinders from their innovative all-aluminum 215 V8 block. Since that time, the engine has evolved into the supercharged 231 cid (3.8 L) version that was used in various GM vehicles from 1992-1995. The Series I made 225 hp for 1994-95, and was replaced by the Series II beginning in 1996.

The history of the 3800 is significant because, due to the fact that it still uses older push-rod technology vs. the now common OHC (overhead cam) designs, the L67 makes a lot of low end torque for its physical size. Combine the fat torque curve with a supercharged induction system, and you have a powerful engine that can be made more powerful for relatively little money. On top of that, you can still have decent fuel economy, reliability, and drivability that is comparable to a completely unmodified engine.

The L67 was optional for the '95 Riviera, and was also offered as an option for the Buick Park Avenue, Oldsmobile 88 LS/LSS, Oldsmobile 98, and Pontiac Bonneville SLE/SSE. It was standard for the Bonneville SSEi. The Riviera is a G-body, a platform shared with the Oldsmobile Aurora, Buick Park Avenue, and Pontiac Bonneville.

Some performance engine parts designed for the Series II will fit the Series I, but there are many differences between the two, most noticeably the M62 blower used on the Series I vs. the M90 used on the Series II. There is still plenty of research needed to be done in this area.

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free


Last edited by AA on Fri Jun 12, 2009 2:57 pm; edited 1 time in total
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DCanady
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What is the L67 (Series I)? Empty
PostSubject: 95 Riv SC   What is the L67 (Series I)? EmptyMon Jul 07, 2008 1:39 pm

Hello, new guy here.
I have a 95 Riv S\C, And am in need of a engine. Are there anh other GM cars I can take an engine from, or does it have to be from another riviera ? Also does the engine have to be S\C for me to use,
Thanks you guys, this is a great forum, seems like you guys know a lot about these cars.

thanks again, D-Nice
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BillBoost37
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What is the L67 (Series I)? Empty
PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyMon Jul 07, 2008 2:00 pm

You should be able to use any SC 3800 Series 1 motor from another GM. Bonnevilles and Park Avenues are good donors.

You could convert to a non supercharged motor, however there would be some wiring differences as well as a different pcm.
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PostSubject: New guy here with a 95 riv   What is the L67 (Series I)? EmptyTue Jul 08, 2008 1:22 pm

thanx alot BillBoost37
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BillBoost37
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PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyWed Jul 09, 2008 7:05 am

Don't thank me until you have the backwards bolt out and then back in. happy
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jax95riv
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PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyWed Jul 09, 2008 7:31 am

It's going to be ALOT easier to swap motor for motor if you can even though the others would work.
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PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyFri Jul 18, 2008 7:31 am

According to Hollander....

1995 Bonneville, Eighty-Eight, Ninety-Eight and Park Avenue supercharged engines will fit, as will the non-supercharged engines though you may have to swap the intake manifold and flywheel.
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BillBoost37
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PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyFri Jul 18, 2008 9:29 am

The non supercharged engines have different rods, pistons and heads. The block is the same though.
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jenkkijussi
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PostSubject: Riviera 95 SC   What is the L67 (Series I)? EmptySat Feb 28, 2009 12:54 pm

What supercharger model is in Riviera -95? Is it Eaton M62 or M90?

Thanks in advance.

Johannes.
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deekster_caddy
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PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptySat Feb 28, 2009 12:56 pm

'95 has the M62.
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PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptySat Feb 28, 2009 12:59 pm

Thank You.
Johannes
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PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptySat Feb 28, 2009 1:10 pm

The 95 Riv has the Third Generation M62 supercharger. It has the Epoxy coated rotors and displaces 1 litre of air per revolution. The M90 displaces 1.5 litres of air per revolution. You can tell if the M62 supercharger you are looking at is a second or third generation by looking at the ridges that go across the top of the housing. The second generation has ridges that go all the way down the side, whereas the third gen (found in the riv) they ridges stop part way down. Also the third gen M62 found in the riv has a 2.8" stock pulley size where the second(being less efficent) has a 2.55" stock pulley.

So in short, the 95 ric has the Generation 3 Eaton M62.

edit: ah not fast enough.. lol

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riv416
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PostSubject: What Series II mods will fit the Series I?   What is the L67 (Series I)? EmptyMon Mar 30, 2009 3:14 pm

What mods can be interchangeable between series 1 & 2?
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PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyMon Mar 30, 2009 3:34 pm

Its really eaiser to say what does not work between the two:
Headers
After market Fuel Rails
cam
rockers(unless specifically designed for series one)
supercharger modular pulley
transmission stuff


ones that work( or are the same):
SC coupler replacement
fuel filter
after market intake(FWI, CAI)
Thermostat
shocks/struts
sway bar
and most of the normal maintence things work between the two

The major differences are that the injectors are in the lower intake manifold one the series one, vs in the engine heads for the series 2, the exhaust ports are strangely spaced on the series one making headers a custom only option, the SC and LIM are compleatly different one from the series 2, and none of the transmission mods that are out for the series 2 will work on the 4t60e transmission of the series one.

Good threads on series one stuff:
http://rivperformance.editboard.com/series-i-engine-transmission-f13/ideas-for-95-sc-t4832.htm
http://rivperformance.editboard.com/series-i-engine-transmission-f13/series-1-performance-mods-t4618.htm
http://rivperformance.editboard.com/series-i-engine-transmission-f13/what-s-the-difference-t3262.htm
and on the superchargers:
http://rivperformance.editboard.com/info-reference-f50/differences-in-superchargers-t1763.htm?highlight=article

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What is the L67 (Series I)? Empty
PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyFri Jun 12, 2009 2:40 pm

AA wrote:
The L67 engine began as the Series I Supercharged, one of the last versions of the long-running 3800 series of Buick engines that originated back in 1962 when the car maker unveiled America's first V6, the 198 cid "Fireball".

Actually, GMC started building their proper 60-degree V6 in 1960...
http://en.wikipedia.org/wiki/GMC_V6_engine
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What is the L67 (Series I)? Empty
PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyFri Jun 12, 2009 2:46 pm

Eldo wrote:
AA wrote:
The L67 engine began as the Series I Supercharged, one of the last versions of the long-running 3800 series of Buick engines that originated back in 1962 when the car maker unveiled America's first V6, the 198 cid "Fireball".

Actually, GMC started building their proper 60-degree V6 in 1960...
http://en.wikipedia.org/wiki/GMC_V6_engine

ah yes, but that wasn't called an L67 or a buick...

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AA
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What is the L67 (Series I)? Empty
PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyFri Jun 12, 2009 2:56 pm

I stand corrected. GMC was first to make a V6!

_________________
'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'05 GTO • 85k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun


'70 Olds Ninety-Eight Holiday Coupe • 116k miles • 455 Rocket V8
Because cool


'95 Celica • 152k miles • 0-60: yes
Because free
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Karma
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What is the L67 (Series I)? Empty
PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyFri Jun 12, 2009 3:12 pm

so much fuss to add the words "one of" smile

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What is the L67 (Series I)? Empty
PostSubject: Series 1 or 2??   What is the L67 (Series I)? EmptyMon Dec 14, 2009 10:40 am

Ok, i'll admit im mechanically challanged, but is there an easy method for determining if my 95 Riv is series 1 or 2 engine???
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What is the L67 (Series I)? Empty
PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyMon Dec 14, 2009 10:41 am

In '95 the supercharged motors are S1, the N/A motor is S2. Does it have a supercharger?
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What is the L67 (Series I)? Empty
PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyMon Dec 14, 2009 10:44 am

deekster_caddy wrote:
In '95 the supercharged motors are S1, the N/A motor is S2. Does it have a supercharger?

yup, so its a series 1???
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What is the L67 (Series I)? Empty
PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyMon Dec 14, 2009 11:27 am

TheAviator wrote:
deekster_caddy wrote:
In '95 the supercharged motors are S1, the N/A motor is S2. Does it have a supercharger?

yup, so its a series 1???

yup.
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What is the L67 (Series I)? Empty
PostSubject: please humor me,...   What is the L67 (Series I)? EmptyThu Feb 09, 2012 11:50 pm

What all did the 3800 series 1 model engine go in.I need a motor.
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deekster_caddy
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What is the L67 (Series I)? Empty
PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyFri Feb 10, 2012 10:47 am

without more information I have to make some assumptions. 1) that you have a Riv, 2) you have a Series 1 engine and therefor 3) it is supercharged. So your supercharged S1 options are a little slim, but possible to find. pre-96 Park Ave Ultras, Bonneville SE, Some olds (88LS, 98?). got the supercharger as an option.
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What is the L67 (Series I)? Empty
PostSubject: Re: What is the L67 (Series I)?   What is the L67 (Series I)? EmptyFri Feb 10, 2012 3:12 pm

captain12pk wrote:
What all did the 3800 series 1 model engine go in.I need a motor.

try contacting moradpartscompany.com, on the Dash on the right, among the list of RivPerformance sponsors.
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