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01-20-2015, 04:20 PM
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Senior Member
 
Join Date: Feb 2009
Location: Northern Nevada
Posts: 7,329
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Motor oil for original engine?
I have a 71 402 with 396 heads.
Since the rebuild I've used 10-40 and 20-50 VALVOLINE DURABLEND, and the engine hums in appreciation. But the auto part stores have phased out DURABLEND, so I'm wondering, what engine oil and viscosity do you folks recommend? Thanks! Last edited by 71CHEVYSHORTBED402; 01-20-2015 at 04:28 PM. |
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