430HP/424 lb-ft LS3 all aluminum. Buying a new one --- don't want someone else's problems. The 5.0L's work pretty good - with mild mods, 300HP is easy, but more importantly - 300-350 lb-ft of torque starting relatively low on the tach. That's what makes them fun. Even though you have 6's and turbo 4's with 250-300HP, they don't produce torque like the old V8's do. I'm much less interested in a big peak HP number and much more interested in about 300 lb-ft of torque starting at idle and going up from there.

The GRM 5.0L ES is really more like a 5.0L Miata swap - and then hang an ES body over the Miata floor pan/suspension. Cool -- but not much is transferable to someone wanting to put a V8 in the ES floorpan.
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82 242 6.2L coming...; '10 Cayman S; '15 Honda Fit