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JointTech · 04-13-2012, 04:25 PM

i run 10-30 in my 350. I havent dealt with junkers since I was a kid but I think the heaviest we ever put in was 10-40 and that was if it was a smoking pig that leaked in the driveway. lol

04-13-2012, 04:25 PM	#3
JointTech Registered User Join Date: Feb 2012 Location: Mission Viejo, CA Posts: 1,858	Re: 1971 C20 longhorn 350 oil weight i run 10-30 in my 350. I havent dealt with junkers since I was a kid but I think the heaviest we ever put in was 10-40 and that was if it was a smoking pig that leaked in the driveway. lol __________________ 72 C20 Long Bed SB350 TH400 14 bolt rear end Extremely boring build thread