NEWSFLASH! (problem solved on page 3)

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Nov 20, 2006 | 10:20 PM

willwren

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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: 172
Size: 138.6 KB

SLEeper'*:
Name: rocker3.jpg
Views: 178
Size: 43.5 KB

Name: rocker4.jpg
Views: 164
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!

Nov 20, 2006 | 10:30 PM

bonnie94ssei

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Posts: 11,308

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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!

Nov 20, 2006 | 10:37 PM

J Wikoff

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Joined: Mar 2003

Posts: 12,433

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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.

Nov 20, 2006 | 10:56 PM

J Wikoff

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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...

Nov 20, 2006 | 11:02 PM

J Wikoff

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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.

Nov 20, 2006 | 11:14 PM

bonnie94ssei

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Posts: 11,308

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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.

Nov 20, 2006 | 11:16 PM

harofreak00

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From: Purgatory

bill i have to say this.. you have had that valve cover who knows how many times.. and you never noticed?!

Nov 20, 2006 | 11:19 PM

J Wikoff

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Certified Car Nut

Joined: Mar 2003

Posts: 12,433

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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?