I just switched from LS6 heads with Rev duals to 5.3s with 987s and boy they are loud. I am not sure if I have a sewing machine or a combustion engine at times. Is this normal?
Phillip <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by phil97svt:
<strong> I just switched from LS6 heads with Rev duals to 5.3s with 987s and boy they are loud. I am not sure if I have a sewing machine or a combustion engine at times. Is this normal?
Phillip <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Phillip I have 987's and an XER cam. I do have a bit more valvetrain noise than some other setups. Nothing to worry about though. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Bruce

 

Phil, mine are pretty noisy compared to stock <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />