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A pressure test is the ticket. maybe freeze plug or timing cover ??
67 Dart Swinger ??
are washers on all the water pump bolts ??
sounds like ring/bore issue,hope you get it resolved.BTW Schweeeet lookin ride !!
Engine was a runner, it was .020 over. We replaced all the bearings, pistons (after a kid dropped 1 and busted off a skirt), rings, oil pump,...
Its all fun and games till one of them grenades and sends shavings through through the engine :steering:
or , a collection of valve seal material restricting the oil pickup tube :glasses7:
Although the the 340 intake might be better in some applications ,not yours . The Streetmaster 318 offers a better port matchup and will eliminate...