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Thread: Valve train noise?
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02-04-2007, 09:22 PM #1
Valve train noise?
I just built my 402 stroker. I put a fast 90mm intake and tb. the cam is .598 lift with ported and polished heads. Stock rockers and lifters. We fired it up for the first time saturday, and there is a lot of valvetrain noise. It was louder at first but then in quieted down a bit. Does anyone know if this is normal? Im thinking that because of the lift that there will be considerably more pushrod to rocker "ticking"
Like i said, it does not sound fatal, just different. Thanks.00 ss camaro, 6.0 liter iron block, 4" callies crank, 4" Mahle pistons, Howards rods, Comp cam .598/.598, ported polished heads, Fast 90mm intake and tb flp headers and y pipe, lingenfelter muffler and tips, Maf, injectors, frame connectors.
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02-05-2007, 05:32 AM #2
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- Dec 2002
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- n/w chicago
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black- 2000 nhra edition formula
mine got louder after the cam and new springs also, its normal.
the sewing machine effect2000 nhra edition formula
a few bolt ons, 379 rwhp
11.96 @113.25
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02-05-2007, 05:32 AM #3
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black, 05 Roush- black, 99 T/A WS.6
I believe some noise is common as you said do to lift.
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02-06-2007, 04:25 AM #4
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- Long Island, NY
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Hugger Orange- 1999 Camaro Z-28
minimal noise is normal as stated...
did you double check pushrod length too? (it would only enhance the sewing machine effect, not detrimental but just wondering)
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