Do I need a cam button?
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Junior Member
Joined: Jul 1999
Posts: 73
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From: Concord, CA
Do I need a cam button?
I'm in the proccess of doing a heads and cam swap. I have a hydraulic roller cam that is going in. My question is, do I need a cam button with a roller cam? thanks for your help.
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Joined: Jan 2000
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
I believe you will. Hydraulic and solid lifter cams have a slight angle to the lobes to turn the lifters in their bores and prevent wear. This has a side-effect of pushing the cam to the rear. Roller rockers have flat lobes and so don't have this effect.
Junior Member
Joined: Jul 1999
Posts: 63
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From: Pittsburgh, PA
If you have your stock '91 block, there is a thrust plate on the front of the block behind the cam gear that retains the cam. A Cam button will be necessary if you are putting a roller cam in a non-roller (pre-'87) block though.
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