Picked up a wide glide front end with 21 inch tire. I'm Going to run a 16 inch hog wheel. Would like to add a nacelle. Lower tree is not tapped. Is it safe to drill and tap that for nacelle/spot lights or do I run the risk of it cracking?

 

Before you waste your time, check the width of your nacelle to the trees. I believe FLH trees are a different width then the wide glide. They made a kit for mounting a nacelle. It consisted of several brackets that attached to give you anchor points for the nacelle and the cow bells (chrome fork covers)

 

Thanks for the heads up. Will do that.

 

Haven't seen one of those kits in a catalog in years.

you could probably make the top tree work...couple of bottom trees on ebay right now for $40


http://www.ebay.com/itm/Harley-Lower...JX4vAH&vxp=mtr

http://www.ebay.com/itm/Harley-Lower...VX4vLR&vxp=mtr

 

That may be the way to go. Got the front end on a swap so might just pony up and. Up trees. As long as the tubes are 41mm they should work, right?

 

41mm is 41mm...the trees you have, if Real FXWG trees have more worth than typical FLH trees...
For the old cast Elephant head nachelle, About any old [pre-85] FLH trees will work. If I was going to go with Tin [panhead/softail style] I would go ahead and use Softail trees, as the Width is enough different to present problems with mounting tin.

 

Well how about a 7 inch headlight with spotlights and no tins? Do you think that would look dumb? How would I mount a 7 inch lift without tins?

 

Same way they are mounted with Tins...only the aluminum elephant Head held the headlight in the Nachelle.
The tins are not even touching the headlight on a Panhead nor a Softail...it mounts to the bottom tree...