3.58 stroke x 340 main (rods/pistons?)

Locomotion said
I ran a Scat 360 cast crank, SIR rods and light SRP piston combo. (Not sure if there is a lighter "shelf" piston available.) Crank was neutral balanced or may have needed very little Mallory Metal. Scat I-beam rods are slightly heavier than SIR.

Yes, definitely. Comparing both Scat and SIR I would be happy with either with this so I would go for the cheaper Eagle if piecing it together.

Here's a kit from Hughes that that is priced as balanced minus cost of heavy metal.

And Scat kits: Balanced and Non-balanced

I was going to buy pistons and rods for my rebuild anyway so to go this much further would be a few hundred dollars. But how much is Mallory? Is this a point where I say I might as well get the forged 3.58 crank to save cost? Forged rotating assembly, balanced, discounted $113 to $2131. SCAT Engine Components 1-48005BI Scat Engine Rotating Assemblies | Summit Racing