difference in 2 sides of motor
Thread Starter
Teching In
Joined: Jul 2014
Posts: 15
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From: Summerville, SC
difference in 2 sides of motor So i have tried to attached two pics of the top of the 317 heads on the lq9 i am going to build to install into a 1981 off the frame resto mod but the site will not allow me because i have no "security token"?. What is bothering me is this:
passenger side of engine looks pristine for 113,000 miles while the drivers side is looks like tarnished oil although this side is also very clean as far as oil residue. Any ideas why one side is so much darker than the rest?
Thanks for your input in advance
passenger side of engine looks pristine for 113,000 miles while the drivers side is looks like tarnished oil although this side is also very clean as far as oil residue. Any ideas why one side is so much darker than the rest?
Thanks for your input in advance
Last edited by slammin sammie; Jul 16, 2014 at 01:03 PM.
On The Tree
Joined: Aug 2012
Posts: 190
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My guess is the PCV (positive crankcase ventilation) system. It sucks fresh air in the passenger side valve cover, goes down into the oilpan and out of the drivers side valve cover into your intake. All that "tarnish" is most likely from the oil vapor.
