Roller Rockers???
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 59
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Roller Rockers??? I am looking to upgrade to roller rockers. Looking for input on whats working and whats not. Would rather not have to do any machining or swap valve covers if possible.. Can ya help me out?
There have been many problems with valve float from aftermarket rockers.
The Harland Sharp shaft mount non adjustables are what I am looking at. They assured me they would fit with no mods. Harland sharp can also modify the stockers with better bearings so they don't come out.
The Harland Sharp shaft mount non adjustables are what I am looking at. They assured me they would fit with no mods. Harland sharp can also modify the stockers with better bearings so they don't come out.
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 59
Likes: 0
Originally Posted by 1BADAIR
There have been many problems with valve float from aftermarket rockers.
The Harland Sharp shaft mount non adjustables are what I am looking at. They assured me they would fit with no mods. Harland sharp can also modify the stockers with better bearings so they don't come out.
The Harland Sharp shaft mount non adjustables are what I am looking at. They assured me they would fit with no mods. Harland sharp can also modify the stockers with better bearings so they don't come out.
Originally Posted by smokin' joe 00 ss
Ditto, same here. 
Last edited by 1BADAIR; Feb 19, 2005 at 02:14 PM.
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TECH Fanatic
Joined: Dec 2001
Posts: 1,060
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From: MI
Originally Posted by LSUxBlake
Keep your stock rockers.
GM has a bulletin out about the replacement of the stock rocker's because of bad needle bearings.
I'm selling SLP 1.85 rockers..
They're a drop in replacement & will give 10% more lift.
They are made by the same mfgr as the stock ones.
No issues at all... If you don't have an aftermarket cam, this is a trouble free upgrade from stock...
They're a drop in replacement & will give 10% more lift.
They are made by the same mfgr as the stock ones.
No issues at all... If you don't have an aftermarket cam, this is a trouble free upgrade from stock...
On The Tree
Joined: Jan 2005
Posts: 104
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From: Northern Virginia
I went with comp cams adjustalble rockers, said would fit under stock valve cover, but they didn't needed to buy spacer to make work. But that was also with after market heads so they may work with stock not sure.
On The Tree
Joined: Mar 2004
Posts: 175
Likes: 1
Originally Posted by smokin' joe 00 ss
And find little needle bearings when you do a oil change, No Thank's!
GM has a bulletin out about the replacement of the stock rocker's because of bad needle bearings.
GM has a bulletin out about the replacement of the stock rocker's because of bad needle bearings.
They are offering a set of modified stock LS1 rockers done by Harland Sharp. The new rockers will have a new trunnion and new bearings with provisions for clips so there is absolutely no chance the bearings can come out. They use the stock rocker bodies. They offer them on an exchange basis-send in your rockers & they send you a set rebuilt or as a core charge.
Check out this thread titled: Modified LS1 Rocker Arms(new Bearings)
https://ls1tech.com/forums/showthrea...90#post1947190
Originally Posted by smokin' joe 00 ss
And find little needle bearings when you do a oil change, No Thank's!
GM has a bulletin out about the replacement of the stock rocker's because of bad needle bearings.
GM has a bulletin out about the replacement of the stock rocker's because of bad needle bearings.
Originally Posted by smokin' joe 00 ss
And find little needle bearings when you do a oil change, No Thank's!
GM has a bulletin out about the replacement of the stock rocker's because of bad needle bearings.
GM has a bulletin out about the replacement of the stock rocker's because of bad needle bearings.
On The Tree
Joined: Mar 2004
Posts: 175
Likes: 1
Originally Posted by V8er
Do you have the bulletin # for this infamous situation? I haven't been able to find any info from GM about this.
Subject: Needle Bearings Found In Oil Pan (Replace Rocker Arms)
Source: Chevrolet Dealer Technical Service Bulletin
Number: 02-06-01-029
Models:
1998-2002 Chevrolet Camaro, Corvette
1998-2002 Pontiac Firebird
2002 Cadillac Escalade, Escalade EXT
1999-2002 Chevrolet Silverado
2000-2002 Chevrolet Suburban, Tahoe
2002 Chevrolet Avalanche
1999-2002 GMC Sierra
2000-2002 GMC Yukon, Yukon XL
2003 HUMMER H2
with 4.8L, 5.3L, 5.7L or 6.0L V8 Engine (VINs V, T, G, S, U -- RPOs LR4, LM7, LS1, LS6, LQ4, LQ9)
Condition:
Some customers may comment or technicians may notice needle bearings being found during an engine oil change. The bearings may be found in either the drain pan used or on the magnetic oil pan drain plug.
Cause:
One or more rocker arms may have experienced a bearing failure.
Correction:
Inspect all of the rocker arms for bearing retainer cap failure. If one or more defective rocker arms are found, replace all 16 rocker arms. Refer to the Engine Mechanical sub-section in the appropriate Service Manual.
If no condition with the rocker arms is found, refer to the service history for previous rocker arm repair. If previous rocker arm repair was made, then the engine may not have been thoroughly cleaned of loose roller bearings. If no previous rocker arm repair was made, then look for another condition.
Remove the oil pan and clean out any additional bearings found within the oil pan. Refer to the Engine Mechanical sub-section in the appropriate Service Manual.
Install the oil pan. Refer to the Engine Mechanical sub-section in the appropriate Service Manual.
Parts Information
Part Number
Description
Qty
10214664
Rocker Arm
16
12560696
Gasket - Rocker Arm Cover
2
12558760
Gasket - Oil Pan
1
TECH Fanatic
Joined: Dec 2001
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From: MI
Originally Posted by LSUxBlake
Regardless of what some say, that is NOT a very common occurance. The stock rockers are fine, I run mine to 7000 rpm and have never had a problem. Aftermarket rockers for a LS1 are a waste of money. You won't see HP gains with them regardless of ratio, as they are much heavier at the tips than stock rockers are.
Originally Posted by smokin' joe 00 ss
And find little needle bearings when you do a oil change, No Thank's!
GM has a bulletin out about the replacement of the stock rocker's because of bad needle bearings.
GM has a bulletin out about the replacement of the stock rocker's because of bad needle bearings.
TECH Fanatic
Joined: Dec 2001
Posts: 1,060
Likes: 0
From: MI
Originally Posted by 99'Formula
The stock rockers are a very nice piece. I personally have never heard this. What I have heard is a lot of crap about the Harland Sharp. So out of the Stock rocker arms, and Harland Sharps, which have you heard about more problems with. The Stock rockers are just fine.