16V engines produce lots of power. I was thinking about running a 16 valve DOHC then I found the V6 and compared the weight, HP, cost, parts availability, engine builders, center of gravity, cam selection, piston selection, heads, cranks, rods, cooling capacity, water pump pressures, accessory drives, transmissions, final drive ratio. The usual. Then came up with a scenario of age to life left. So it did not work out for me. But don't let this stop you. We could use more good build threads. I just let it swing a touch toward the extreme. I'm into my build for around $30,000.00 300 1 year of labor and 300 feet of tubing.