LT1-LT4 Modifications 1993-97 Gen II Small Block V8

AFR rev kit?

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Old Aug 17, 2008 | 12:17 AM
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Default AFR rev kit?

My 396 is making some noise up top (not RPM, I mean physically the top of the motor). I had the Rev Kit in my previous 385 and while it made a little noise, I don't remember it being this damn noisy. I listened carefully to my valve train, putting my ear next to the valve covers and even removed my breather and put my ear right over the hole. Just the normal "sewing machine" sound there. It really seems that the damn rev kit is causing the noise because as I move my ear over the intake the noise is louder.

Anyone else experienced a lot of noise with an AFR Rev Kit? It's so bad I'm thinking about ditching it.
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Old Aug 17, 2008 | 12:21 AM
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Maybe you have developed a bearing problem. They can sound like they are coming from the lifter valley.
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Old Aug 17, 2008 | 12:28 AM
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Originally Posted by fergymoto
Maybe you have developed a bearing problem. They can sound like they are coming from the lifter valley.
I hope to hell not. Motor has about 1100 miles on it. Oil pressure and all other vital signs are excellent.
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Old Aug 18, 2008 | 11:08 AM
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I've had the rev kit on my AFR's for over 9 years and no noise issues here, just the normal sewing machine from my RR's. Probably some other issue.
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Old Aug 18, 2008 | 11:11 AM
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Dave, not what I wanted to hear, but thanks for the input. I may still pull the kit off and run the motor without it. However, before I do that I'll continue to listen and see if I can get a better handle on it.
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Old Aug 25, 2008 | 02:25 AM
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Are you sure you got valve lash not to loose. I got the rev kit in my 355 and had the lash too alittle too loose, no more problems. check valve lash
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