[Nine Ball]

I've had a few of both setups.

Bang for the buck, it is hard to beat an LS3/L92 block with their large bore diameter, and dirt-cheap high-flowing cylinder heads. They do really well under boost, too. You can also build a stout NA LS3, easily reaching 500 rwhp if you build it right.

I'm going LS7 this time around, just because I wanted to do one in a '69 Camaro for a long time now. You also can avoid the dry-sump complexity if you just start with the block, and build the engine using a normal wet-sump 4.00 stroker crank. I'm using Callies CompStar crank and rods in my LS7, with some ported LS7 heads (Mast). It will still rev to 7K, I've had built LS engines in the past do so with a wet sump. I priced crate engines, and found it was actually a little less expensive to have a custom LS7 built, with all forged internals. Texas Speed & Performance did mine. They even drill the block for a normal oil dipstick.

Tony