Going to sell a SBC, how much to charge??

[next69]

Hello,

I have 350 ci small block that I want to sell so I can get an LS3 for my Nova, it has roughly 500 miles on it, spec's below:

Chassis dyno tuned to 260.6 RWHP and 321.7 ft-lbs of torque, when considering a 15-20% drivetrian loss the engine numbers would be roughly 299-312 HP and 369-385 ft-lbs of torque.

Block: Cast iron with 2-bolt main caps
Crankshaft: Forged Steel
Connecting Rods: Powdered Metal Steel
Pistons: High-silicon aluminum with offset pins
Camshaft Type: Steel hydraulic roller
Cylinder Heads: Aluminum, 58cc chambers (GM casting No. 10088113, the castings are in stock condition, they have not been ported or polished)
Valve Size: 1.94 Intake/1.50 Exhaust
Compression Ratio: 10 to 1
Rocker Arms: Aluminum Roller (Crane Cam's Gold Race)
Rocker Arm Ratio: 1.6 to 1

Also includes: Weiand Stealth intake, Weiand Long water Pump, Mighty Demon 650 CFM carb., MSD 6-AL ignition box, MSD Blaster 2 Coil, MSD Pro-Billet Distributor, MSD 8.5mm Plug Wires, K&N Round Ribbed Air Cleaner, Jeg's Dual Spring Throttle Linkage, East Coast Single Wire Alternator, GM Starter and ARP SBC Bolt Kit.

Thanks in advance for your time and advice.

Happy Fathers Day!