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Can I replace the CAM without lifters being installed?

Tiny
HD2424
  • MEMBER
  • 2003 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 235,000 MILES
I’m in the process of putting a rebuilt 5.3 in my truck listed above 1500. I got a rebuilt engine less the cylinder heads and lifter and lifter tray. The guy rebuilt it with a stage 4 cam, and I need to remove and replaced with a stock cam.

My question is, can I replace the cam without lifters being installed? Cam installed then put in lifters. I’m waiting on parts and I’m just trying to speed the process up.

Thanks
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Thursday, September 1st, 2022 AT 7:29 PM

2 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,895 POSTS
I have heard of people removing the rockers and intake manifold and pushing the lifters up inside the plastic guides and then they stay, but I have not done it, so I don't know how successful it is. Good call on replacing the cam with stock though.

This is a video that will show the camshaft replacement so you can get an idea of what you are in for when doing the job:

https://youtu.be/QOr3m815pIQ

Let us know what happens and please upload pictures or videos of the problem.

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Friday, September 2nd, 2022 AT 8:18 AM
Tiny
HD2424
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  • 191 POSTS
10-4, will do.
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Friday, September 2nd, 2022 AT 10:44 AM

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