Gouges on rear counterweights Vortec 7.4

[bentwrenches]

Never seen anything like this, literally gouges on the last three counterweights of a mid to late 90's Vortec 7.4. I rotated the crank around, it's not hitting piston skirts. I pushed on pistons, no movement noted. Went to check clearance between skirts and weights and can fit a stack of feeler gauge between them. Nothing out of ordinary in oil pan except dirt. Anyone else ever seen this?


Motor is a C.L. special, bought off a trailer for a rebuild from a guy who picked up from salvage yard for a project then went LS instead. Other than rust and dirt outside the motor internally is in great shape. Still has crosshatch visible on the cylinder walls.

 

[Schurkey]

Looks like someone knocked-off the casting ridge.

No big deal.

 

[Frank Enstein]

That is perfectly normal for a factory cast crank. Nothing to be worried about. It was done before balancing.

 

[TechNova]

The foundry ground the parting line flash, gates or vents before it was machined or balanced.