Two good threads.  I, personally, don't buy into the paint coating claim.  But the finish is smooth and not very bright.

I did this valve cover for 26th-Z.  I polished the living daylights out of the surface before I sprayed it wrinkle.  I wanted all the casting marks removed and that took a lot of work.  It turned out pretty good.

I like the black on mine too. It's such a good contrast off the aluminum carbs and intakes.

 

 

12 hours ago, siteunseen said:

 

Lawks, what a mess.

The valve covers on these engines were not manufactured by 'Aitoku Co. Ltd', and they never supplied replacement covers either. They were simply a reconditioned engine supplier, hence the sticker advising that there's no oil inside (the engines could not be shipped with oil pre-filled) and to check drain plug and 'filter cap' (sic) tightening before starting. That's simply a valve cover taken off a recon engine.

The valve (cam) covers were manufactured by Nissan using the High Pressure Die Casting method. The casting dies were polished, and the outer surface of the covers came out of the process with a fine-grained, dense outer surface finish that did not require painting.