Setting the stage:

1. I have a '99 Corvette with 90K miles. Stage I heads and mild cam with 70K miles on them. Engine needs a rebuild because I either have a bad rod bearing or bad wrist pin (I'm pretty sure its a rod bearing). Either way I need to pull the engine and rebuild it. Either way, I'm installing a new cam (either a 224/224 112 or a 231/237 112).

2. I am on a TIGHT budget. Around $4000.00 at the most.

Option I.
I have a chance to purchase an LS6 rotating mass (crank, rods, pistons, rings, etc.) that only has 2500 miles on it for $350.00. I am think of replacing the current rotating mass with this (no honing or anything) and spending my money on new heads and cam.

Pros:
- I will get more power with the new heads and cam.
- It is the cheaper option.
Cons:
- I am not an experienced engine build but I think I can do this.
- I will need to purchase additional tools.
- Will the LS6 rotating mass fit in an LS1 block?

Option II.
Purchase an assembled shortblock, with new cam and use my current heads.

Pros:
- I know the shortblock will be blueprinted and built to the highest standards.

Cons:
- I think the old heads will need the springs replaced anyway.
- The heads are almost 4 years old. They don't flow very well.
- I'd hate to have to replace the heads later (pain in the butt).

I would appreciate any opinions and answers to my questions (especially the LS6 crank question).

Thanks,
Tony