NORTON ATLAS N15CS G15CS 750 SPIGOT CYLINDER HEAD GOOD EXHAUST PORTS GOOD FINS. Used cylinder head from as 750 Norton Atlas and N15CS Srambler as well as the Matchless models that used this power plant. Valve seats look good. Exhaust port threads look very nice. This is the early style head for the cylinder with the raised spigot that inserts into the combustion chamber. Get Supersized Images & Free Image Hosting. Create your brand with Auctiva's. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva. Track Page Views With. Auctiva's FREE Counter. The item "NORTON ATLAS N15CS G15CS 750 SPIGOT CYLINDER HEAD GOOD EXHAUST PORTS GOOD FINS" is in…