Is a new 4.6 Crankshaft worth it?

[429244]

I don't have my engine apart yet. It runs fine (no issues like low oil pressure or noise and has about 60,000 miles on it). The engine has a stock crankshaft and I believe that is plenty for the expected horsepower level. When I freshen up the engine, I will be putting in new rods, pistons, and rings. That assembly will need to be balanced and my local machine shop will charge about $350 to do it.
Let's say the stock crankshaft also needs to be machined instead of just polished. The charge for that is about $220.00. A new crankshaft from Tasca is $270. Is it worth it to keep the stock original crank to save $50? Is this one of things where the original crank is somehow better because it has been used for 60,000 miles without a failure and a new crankshaft is unproven and might still need machine work for some reason?
Thanks in advance.

 

[tjm73]

Crank probably won't need anything. I'd save the money unless it proves it needs to be worked. And even then I would just have to OE crank worked just to minimize the down time.

 

[swflastang05]

^^x2. And those machine shop prices seem a little steep to me, you might want to shop around, if you have any other local options, or if not that explains why they're high..

 

[eighty6gt]

Machining costs roughly half of what I see here, looks good! Since you'll be boring out the engine, doing a line hone, etc, the machine shop can take care of everything at once so buying a 2nd crank probably wouldn't save a lot of time. My machine shop is busy rebuilding natural gas gensets so enthusiasts play 3rd fiddle.

 

[RocketcarX]

Unless your old engine spun a rod it shouldn't need to be cut.
A polish or even nothing at all would be correct depending on what you find.

 

[429244]

Thanks for all of your opinions. As for cost, this shop is not the cheapest or most expensive in the area. They are the shop with experience machining 4.6's.