A nice, new engine. Well, used 6.0 iron block bored out to 6.2. All new internals except crank and rods (original). 706 heads (unshrouded valves), 600 lift, short duration cam, flat top pistons, 12.5:1 compression. Powerband idle to 6000rpm with peak torque around 3,500rpm and peak horsepower around 4,000rpm. On paper it specs to around 550hp and about 580 torque. No dyno around here so true numbers I won't know. My numbers are based on formulas for the parts used.