Valvetrain question - Team Camaro Tech
LSx Swap LSx Engines in Non-LSx Vehicles

 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old Sep 16th, 16, 11:10 AM Thread Starter
Senior Tech
Anne
 
Join Date: Jan 2013
Location: Eddyville KY
Posts: 1,470
Valvetrain question

I have the LS3 heads installed and now need to install the rockers.

The stock rockers sit on a rocker stand that has scalloped areas for the rocker bearing to sit on :
MTM491-003 - Mast Medium Bore Rocker Stand for GM OEM LS3/L92 Rockers

I have a set of 1.8 Crane gold rockers. I believe the rocker stand gets eliminated and a stud gets installed where the stand was. Then the crane rockers pivits on the stud just like a SBC or BBC rockers would.

Does that sound correct ?

Government's first duty is to protect the people, not run their lives.
Ronald Reagan
Lawrence454 is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old Sep 16th, 16, 11:56 AM Thread Starter
Senior Tech
Anne
 
Join Date: Jan 2013
Location: Eddyville KY
Posts: 1,470
Re: Valvetrain question

I found the instructions at Crane's website.

Duh, don't know why i didn't think of it before.

http://www.cranecams.com/uploads/instructions/561e_.pdf

Government's first duty is to protect the people, not run their lives.
Ronald Reagan
Lawrence454 is offline  
post #3 of 5 (permalink) Old Sep 16th, 16, 06:47 PM Thread Starter
Senior Tech
Anne
 
Join Date: Jan 2013
Location: Eddyville KY
Posts: 1,470
Re: Valvetrain question

Hey guys,

The stock LS3 rocker arm setup is hard to beat. I have inherited a set of crane gold 1.8 ratio shaft-mounted rockers that are very expensive.

But I'm thinking they might perform worse in my setup.

Comp Cams sells a factory setup that has improved bearings :
PACE Performance - GMP-346-1372 LS3 Rocker Arm Set with Installed HD Trunnions with Bolts

I think the crane rockers will add weight to the valvetrain and cause valve float unless I install stiffer springs.

Any ideas here? I think I can sell the crane rockers for what the comp cam upgraded stockers cost.

Which way would you proceed ?

Government's first duty is to protect the people, not run their lives.
Ronald Reagan
Lawrence454 is offline  
 
post #4 of 5 (permalink) Old Sep 16th, 16, 07:07 PM Thread Starter
Senior Tech
Anne
 
Join Date: Jan 2013
Location: Eddyville KY
Posts: 1,470
Re: Valvetrain question

Just came across this and it looks like an awesome rocker setup :

LS bushing trunnion kits - Straub Technologies

Maybe we can get Chris Straub to comment on this ? He usually hangs out in the engine section of this website.

Government's first duty is to protect the people, not run their lives.
Ronald Reagan
Lawrence454 is offline  
post #5 of 5 (permalink) Old Sep 17th, 16, 04:59 AM
Moderator
____
 
DOUG G's Avatar
 
Join Date: Mar 1999
Location: Maryland, USA
Posts: 19,627
Garage
Send a message via MSN to DOUG G
Re: Valvetrain question

Quote:
Originally Posted by Lawrence454 View Post
Just came across this and it looks like an awesome rocker setup :

LS bushing trunnion kits - Straub Technologies

Maybe we can get Chris Straub to comment on this ? He usually hangs out in the engine section of this website.
I have looked at both the CS bushing kit and the upgraded bearing kits.
With the cam I'm running as well as the spring pressure....it is a concern in the back of my head.


As for the Crane rockers, no ideas, but should flip easy.

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
DOUG G is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.



Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome