Mild blown SBC oil weight

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by hotrod200, Jul 1, 2014.

  1. hotrod200

    hotrod200 Member

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    I have a blown 350 that was a street engine with steel rods so clearances are tighter than a drag engine. I have put methanol injection on it and trying to make 700hp or so. I have ran 20w50 in it in the past should I still? Or go to straight 50? Thanks
     
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  2. swsc4133

    swsc4133 Member

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    Oil

    We always ran 20/50 Castrol in ours. Went 7.30's with a factory block and crank and about 15lbs of boost, flat top pistons. Melling pump.
     
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  3. hotrod200

    hotrod200 Member

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    It sounds like that small block hauled arse!
     
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