Thread: chevy small block 355
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08-11-2013 08:10 PM #1
Change the oil and put straight 50 wt. back in it, see what happens. If it's piston slap, that should quiet it down. I didn't say it will cure it. Nothing short of a piston that fits the bore will cure it, but at least you can find out what it is.
I had a cracked piston on #1 SBF a few years ago. Pretty loud.Last edited by techinspector1; 08-11-2013 at 08:13 PM.
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