late 60's the 318 switched from forged to cast.
numerous guys running 550-600 HP w/cast 360 cranks, (think of the number of W2 headed 360's that have run over the years) the 318 has similar if not more journal overlap, so I'd say it should handle similar power levels.
1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
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