Editing Vortec L31 cylinder head (section)
Jump to:
navigation
,
search
===Locks=== {{Note1}}On Vortec and other heads using self aligning rocker arms, using a +0.050" lock can cause interference between the rocker tip and the locks/retainer. Rocker contacting the locks/retainer has been encountered using a combination of c/n 906 Vortec heads, Comp Pro Magnum rockers p/n 1317, Comp retainer p/n 787, Comp spring p/n 26918, and the +0.050" locks. The engine builder must mock up the assembly and check the clearance closely. In the case there's insufficient clearance, there are a few options: *Use non self aligning rocker arms. Requires guide plates be installed. *Use longer valves *Use a different spring/retainer combo that uses a standard lock *If just the locks are hitting the rocker, using a shorter (lash cap compatible) lock like the Edelbrock p/n 9615 may help. This 7 degree lock is 0.050" lower than a regular lock. *{{!}}Use extreme caution if making the spring seat any deeper. A tool to help determine the installed height using different retainers and/or locks is the Howards Cams p/n 92010, shown immediately below: [[File:Ret height92010.jpg]]
|
Editing help
(opens in new window)
Personal tools
Log in / create account
Namespaces
Page
Discussion
Variants
Views
Read
Edit
View history
Actions
Search
Navigation
Main Page
Recent changes
Random page
Help
All articles
Start a new article
Hotrodders forum
Categories
Best articles
Body and exterior
Brakes
Cooling
Electrical
Engine
Fasteners
Frame
Garage and shop
General hotrodding
Identification and decoding
Interior
Rearend
Safety
Steering
Suspension
Tires
Tools
Transmission
Troubleshooting
Wheels
Toolbox
What links here
Related changes
Special pages
Terms of Use
Copyright
Privacy Policy
Your Privacy Choices
Manage Consent