I need a 5.7 vortec for my 99 lade ,anyone have one ? thanks

car-part.com is a good source...

What is wrong with yours?

Or drop by your local GM dealer.... But owch....

I have cracked head and bad wrist pin

The 96-02 Vortec 350's are pretty much identical, but I would lean towards a 98 up. While you are at it, before it goes in, get a new intake gasket on it, they are problem children....

Oh, lurk around fullsizechevy.com, you might find some good advice there.