http://www.ebay.com/itm/Datsun-Bob-Sharp-Racing-Valve-Cover-with-Cap-Only-NOS-240Z-260Z-280Z-10-J8501RE-/111820828740?hash=item1a090a7044:g:Z5sAAOSwo6lWGCRd&vxp=mtr

http://www.ebay.com/itm/DATSUN-BOB-SHARP-VALVE-COVER-RACING-240Z-280Z-280ZX-/271975266345?hash=item3f52fd3829:g:egQAAOSwyQtV27fY&vxp=mtr

The asking price is really going up. I met someone who sold one for $1000+ a few years ago. I wonder who might be in the market for a $3000+ valve cover.

That is insane!!!! No way

Here's the old thread that I was referring to: http://www.zcar.com/forum/10-70-83-tech-discussion-forum/303822-bob-sharp-racing-valve-cover-any-idea-what-worth.html

Here's another thread from a couple of years ago. I checked the link to the eBay listing, $1499 with 0 bids. http://www.zcar.com/forum/10-70-83-tech-discussion-forum/316809-bob-sharp-racing-cam-cover-steering-wheel-oil-cap.html

One did get a bid on ebay at $1585, reserve not met. http://www.ebay.com/itm/Bob-Sharp-Racing-Valve-Cover-Datsun-240Z-260Z-280Z-280ZX-/111771745222?hash=item1a061d7bc6&vxp=mtr

 

I'm beginning to believe they are for people with more dollars than sense.

 The buyer will be someone with a completed Z and money still in the budget. I don't know anyone in either category. But then I don't know Jay Leno. 

There's 2 on ebay now, one has a bid of 3.895 and the other 2.735 USD

Well, they are only worth that amount if someone will pay it. Otherwise, they aren't worth a plug nickel.