New cam need new timing chain? - Team Camaro Tech
Tech 2002 General Tech questions from 2002
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post #1 of 7 (permalink) Old Jun 26th, 02, 01:41 PM Thread Starter
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Location: Highland Village, TX, USA
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I'm going from a hydrolic cam to a solid roller cam, with new heads and curious if I need to get a new timing chain or can I use my old one? I planned on getting the cam and lifters and the rest, setup my new heads for the solid roller.

69, 468, ATI supercharged camaro.
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post #2 of 7 (permalink) Old Jun 26th, 02, 02:03 PM
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Location: Washington, Michigan USA
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With a roller cam swap, I wouldn't try and cut corners; I'd spend a few bucks for a good Cloyes True Roller chain and sprockets.

'69 Z28 Fathom Green
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post #3 of 7 (permalink) Old Jun 26th, 02, 07:02 PM
David Pozzi
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get the very best roller lifters you can find.
I see Isky has some new ones that are heavy duty pressure lubed.

I'd put on the best chain you can find.

The factory plastic cam sprockets can get brittle and I have seen them shed their teeth at 60 to 70 thousand miles on a stock Z/28.

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67 RS 327 original owner. 69 Camaro Vintage Racer, 65 Lola T-70 Chev SB Can-Am Vintage Racer
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post #4 of 7 (permalink) Old Jun 26th, 02, 07:57 PM
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One question???

Do you really want to pull eveything all apart again? I would do it while I had it apart...
post #5 of 7 (permalink) Old Jun 27th, 02, 01:55 AM
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I'd like to know why they put those sh*tty nylon gears in new engines. When they break (which they WILL) You end up with at least a bunch of bent pushrods. Sure it might be a little quieter, but GM's been putting these crappy gears in for years. What gives???

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post #6 of 7 (permalink) Old Jun 27th, 02, 03:21 AM
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They are plastic because the plastic is quieter and costs less to manufacture and it will generaly get you through the warranty pieriod and in typical commuter car useage they will still function at some level for many many miles. It is a very careful economic business decision. Why pay more?

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post #7 of 7 (permalink) Old Jun 27th, 02, 09:21 AM
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All the late model engines I've worked on have had sintered gears, not plastic. I have not seen a plastic gear in years.
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