273 crank, 318 CID

[it's all dodge]

I'm thinking of building a .060" over 318 with Ross flat tops, weight about 615G, with the chevy .927 pins, and Eagle rods, about 605G. Would a 273 steel crank be heavy enough for that, or would a bunch of weight need to be added to make it not even worth looking for the crank? This would be for an oval track engine, to spin 6500 or more.

[Billydelrio]

If the 615 grams includes the piston, pin and locks, then I think a 273 crank will need metal removed from the counter weights, not added. I had my latest 273 balanced on December 29, 2005. The card reads as follows:
Rod rotating 494
Rod rotating 494
Rod bearing 40
Rod bearing 40
Oil 3
Piston, pin, locks (1 set) 677 (compared to your 613)
Rings (1 set) 52
Rod reciprocating 230

Bobweight total: 2030

The pistons were Jahn's cast 273 dome pistons that gave 11.04 to 1 compression with a factory stock 3.31" 273 crank. The Eagle H-beams are similar in mass to the stock 273 rod. Here are some rod masses as they are according to my measurements.

Eagle CRS6123C3D 724
Dodge 273/318 2406782 712 to 726
Dodge 318/360 3418645 755 ish

[it's all dodge]

No problem taking the weight off, just trying to find the lightest rotating assy. and the 273 steel crank should be able to take the abuse.