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Old 11-09-2017, 03:03 PM   #1
nikwho
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Join Date: Apr 2010
Location: Flagstaff, AZ
Posts: 974
What oil viscosity in fresh SBC in cold weather?

Hello all,
I'm curious what viscosity oil I should run in my freshly rebuilt gen 1 350 SBC? It's got just half an hour run time to break in the cam. All bearing clearances are roughly 0.002". I live in the mountains, where it gets fairly cold in the winter. Periodically down to 0°f but I only drive this truck on nicer (relatively) days. I was planning on running 10w30 VR1 Valvoline racing oil. Has a Melling high volume pump. Stock bottom end w/ Summit 1103 cam and LT1 305 cylinder heads. Weiand Streel Warrior dual plane manifold with 1406 Edelbrock carb.

Thanks for any help!
Nik
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'59 Apache - 383" SBC/TH-350
'68 GMC - BBC/TH400

Last edited by nikwho; 11-09-2017 at 04:11 PM.
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