Whats Better

273-340 V8 525

361-383-400 V8 620

Is the engine weights above just the engine or does it include all of the accessories to? Because most of the accessories will be gone to, no power steering pump, no AC, Basically the only thing the engine will be turning is the alternator.

Aluminum heads, intake and water pump (probably electric). Fuel injection should drop a couple of lbs. Dropped a pound in the rotating assembly. There was something else but I can't remember right now. Headers should be a little lighter than the exhaust manifolds.