Hi, I had some rotten luck and bought a GS500 that needs a replacement head. The last owner overtightened the cam caps and cracked two of them. I'm looking at a 2007 GS500E head on ebay, I have a 2001. I've heard that the heads were different on the GS500F, did they even make an E after 2003? Is there any chance it'll work on my motor?

Thanks!

only difference is if it came from an oil cooled model I think otherwise should be the same

The F models have an electric tach and no longer use cable drive from the head.  Oil cooler doesn't connect to head.

Quote from: gsJack on June 25, 2008, 07:52:24 AM
The F models have an electric tach and no longer use cable drive from the head.  Oil cooler doesn't connect to head.

The hole for the drive gear was still in the head in 04 but it was plugged. I believe the hole was removed in 05.

Hmm... I have  a 2005 head on the line, he says the casting for the mechanical drive is still there. I wonder how hard it'd be to drill out / install the worm gear from my old bike? If those tolerances were off it could just permanently hemorrhage oil from that port... Has anyone actually pulled off transplanting a post 2005 F head to pre 2002 E motor?

It is possible with the proper equipment... an end mill. I would not attempt boring the hole with a drill dress.

Another option is to switch to an electric tach with the 05 head. The wiring is not difficult.