NEWSFLASH! (problem solved on page 3) - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 11-20-2006, 11:20 PM   #1
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Default NEWSFLASH! (problem solved on page 3)

Guess what? The Zilla doesn't have roller rockers. Never really paid attention, as I didn't have a reason to.

GM clearly calls out the 93-95 heads and valve train as identical, but MINE is NOT. Case in point:

ROCKER ARM:
Quote:
Description: ARM & PIV
Part #: 12344051
Categories:
Mechanical > GROUP 4 - ENGINE > HEAD & VALVES


Make Model Year(*) Application

Buick LeSabre
1993-1995
All applications

1993-1995
V6


Buick Park Avenue
1994
All applications

1993
Normally Aspirated

1995
Supercharger

1994
V6


Buick Regal
1993-1995
3.8L Eng

1993-1995
V6, 3.8L Eng


Buick Riviera
1995
Supercharger


Chevrolet Lumina APV
1993-1995
3.8L Eng


Oldsmobile Eighty-Eight
1993-1994
Normally Aspirated

1995
Supercharger


Oldsmobile Ninety-Eight
1993-1994
Normally Aspirated

1995
Supercharger


Oldsmobile Silhouette
1995
All applications

1993-1994
3.8L Eng


Pontiac Bonneville
1993-1994
Normally Aspirated

1994-1995
Supercharger


Pontiac Trans Sport
1993-1995
3.8L Eng

HEAD ASSEMBLY:
Quote:
Description: HEAD ASM
Part #: 24501418
Categories:
Mechanical > GROUP 4 - ENGINE > HEAD & VALVES


Add to Cart



Make Model Year(*) Application

Buick LeSabre
1993-1995
All applications


Buick Park Avenue
1993
All applications

1994-1995
V6, Eng VIN 1

1994
V6, Eng VIN L


Buick Regal
1993-1995
3.8L Eng

1993-1995
V6, 3.8L Eng


Buick Riviera
1993
All applications

1995
Supercharger


Chevrolet Lumina APV
1993-1995
3.8L Eng


Oldsmobile Eighty-Eight
1995
Supercharger

1993-1994
V6

1995
V6, Supercharger


Oldsmobile Ninety-Eight
1995
Supercharger

1993-1994
V6

1995
V6, Supercharger


Oldsmobile Silhouette
1995
All applications

1993-1994
3.8L Eng


Pontiac Bonneville
1993-1994
All applications

1995
Supercharger


Pontiac Trans Sport
1995
All applications

1993-1994
3.8L Eng

Yet I just verified the Zilla has NO roller rockers. No bearings whatsoever.
Proof:

Zilla'* rockers:

Name:  rocker2.jpg
Views: 4
Size:  138.6 KB

SLEeper'*:
Name:  rocker3.jpg
Views: 4
Size:  43.5 KB
Name:  rocker4.jpg
Views: 4
Size:  47.6 KB
See the bearing?

Now for the help part. I need as many 93 and 94 L27 and L67 owners to take the same pics I did on the SLE. I also need to know the production date for your car listed on the driver'* side door jamb.

ALL 93'* may NOT be roller-valvetrains. Some of them may be roller LIFTER ONLY.
In a sense, this is encouraging, considering the power I've achieved with the 'older' valvetrain. I simply never paid attention. But the bad news is I need to find a set of 94/95 L67 or 94 L27 heads ASAP!
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Old 11-20-2006, 11:30 PM   #2
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Wow, that'* weird, I figured they'd all be the same. I think mine is a late 93 production. I'll go snap some pics!
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Old 11-20-2006, 11:37 PM   #3
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Well, Zilla'* look just like White Whine'*, for what I can tell. And just like the rockers I sold off my 93 SE heads, IIRC. I'm pissed that I don't have the right heads for the YT rockers I have.
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Old 11-20-2006, 11:56 PM   #4
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Hey, if I'm reading that right, it indicates all Series I 93-95 have the same heads, but it leaves 93 L67 out of the rocker listing...
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Old 11-21-2006, 12:02 AM   #5
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GM lists the 93 L67 rocker as unique and the L27 rocker as 93-95.

89 or 88 to 92 all shared a different rocker.
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Old 11-21-2006, 12:14 AM   #6
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I cannot get a good pic like you have of the 95.

Mine do not look like either of yours exactly, but, with an accurate flashlight I can see a hex head on mine as you have on Zilla. So I'd say I do not have rollers either :(

Production date on mine is 11/93.
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Old 11-21-2006, 12:16 AM   #7
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bill i have to say this.. you have had that valve cover who knows how many times.. and you never noticed?!
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Old 11-21-2006, 12:19 AM   #8
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Can you get a pic of the guideplate where you can see it through the oil filler? Between 3 and 5. I wanna see if it looks like my 92. Do they look the same between the 93 and 95?
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Old 11-21-2006, 12:22 AM   #9
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Pete, do you see the shiny ROUND BEARINGS on the 95 pics?
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Old 11-21-2006, 12:25 AM   #10
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