Cam change - Heads on or Heads off - ModernCamaro.com - 5th Generation Camaro Enthusiasts
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post #1 of 5 Old 06-08-2009, 05:17 AM Thread Starter
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Cam change - Heads on or Heads off

I have read a few places lately that it's possible to change the camshaft on an LS engine without pulling the heads. One article mentioned some kind of dowel like there was a way designed into the engine to hold the lifters up. I'm all for a camshaft change but going as deep as to pull the cylinder heads off and replacing headbolts etc on a new engine is further then I'm willing to go.
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post #2 of 5 Old 06-08-2009, 05:25 AM
 
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Correct -- heads don't need to be pulled to swap cam.
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post #3 of 5 Old 06-11-2009, 03:57 PM
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Quote:
Originally Posted by gto_in_nc View Post
Correct -- heads don't need to be pulled to swap cam.
hmmmmmm

i'll have to rethink a cam swap

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post #4 of 5 Old 06-11-2009, 04:45 PM
 
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What I should have pointed out, though, was that the issues of degreeing the cam and/or checking P-V clearance are totally separate from whether it is neccessary to yank the heads. The LS engines feature "lifter trays" that are designed to let you to remove springs & rods, slowly spin the cam & "park" the lifters, thereby allowing the cam to be slid out & a different one slid in. The trays are not 100% reliable, however, especially on worn engines, so there are cam install tools that builders use to help get the lifters out of the way. Here's an example:

http://www.thunderracing.com/catalog...d=108&pcid=171
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post #5 of 5 Old 06-11-2009, 10:10 PM
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cool tool

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