Parts needed for cam swap?
TECH Regular
Joined: Feb 2003
Posts: 444
Likes: 1
From: Bahrain
Yes, rockers will be needed with this cam as the stock rockers couldn't handle the high lift. Its better to get non self aligning rockers for 7/16" studs. Hardened pushrods and guid plate will be requied.
I think the crane spring kit would be a better deal if it'll allow the lift of the 847. I used the beehive 918 since that seems to be the more popular choice. Most people reuse the stock lifters, but upgrading the pushrods to at least a hardened set is recommended. Larger full roller rockers are also recommended as they provide a good hp gain, I went with Comp Pro Mags and upgraded the rocker studs to 7/16" for more strength. You should also upgrade the timing chain. This decision is going to be based on two things, model year and waterpump. If you go with an electric wp, you'll have more options that are much cheaper like the Cloyes double roller which is what I'm using. Otherwise you're pretty much stuck with the LT4 ED timing set. Don't forget gaskets, lots of cam lube, and all the tools you'll need if you're doing this yourself.
http://shbox.com/ci/cam_removal.html
http://shbox.com/ci/cam_install.html
http://shbox.com/ci/cam_removal.html
http://shbox.com/ci/cam_install.html
Originally Posted by seawolf06
I think the crane spring kit would be a better deal if it'll allow the lift of the 847. I used the beehive 918 since that seems to be the more popular choice. Most people reuse the stock lifters, but upgrading the pushrods to at least a hardened set is recommended. Larger full roller rockers are also recommended as they provide a good hp gain, I went with Comp Pro Mags and upgraded the rocker studs to 7/16" for more strength. You should also upgrade the timing chain. This decision is going to be based on two things, model year and waterpump. If you go with an electric wp, you'll have more options that are much cheaper like the Cloyes double roller which is what I'm using. Otherwise you're pretty much stuck with the LT4 ED timing set. Don't forget gaskets, lots of cam lube, and all the tools you'll need if you're doing this yourself.
http://shbox.com/ci/cam_removal.html
http://shbox.com/ci/cam_install.html
http://shbox.com/ci/cam_removal.html
http://shbox.com/ci/cam_install.html
Those beehives are EXPENSIVE when you add Ti retainers!
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Verdad Gallardo Call up speed engineering and see what they can offer you. I got all my valvetrain parts through them and saved a ton. If they're not site sponsers here, you can get to them on camaroz28.com good luck.
