Fender necks do not fit Hondos, at least not without modification. The Hondo neck pocket is a little wider.
Fender spec necks are for Fenders. They don't even fit G&L, much less metric spec imports.
It may depend on the era. I replaced the neck on this Hondo 830 series 'Fame' without modification. I still have the original maple neck, heel is 2 7/16", same as AllParts and within tolerances for Fender. No slop in the pocket.
![](http://i976.photobucket.com/albums/ae241/cata1d0/ME/FAME_zpspe4wefw4.jpg)
With AP P neck installed and everything else switched out.
![](http://i976.photobucket.com/albums/ae241/cata1d0/ME/RED-ASH-FRONT_zpsdh9sceug.jpg)
Sold it to a friend after I installed a Fender Japan Jazz neck and a DiMarzio. It developed the typical edge to tuner hole crack so I switched THAT out for an AP Jazz. Body is a beaut but heavy. Back in the day we called it Sen, Japanese ash.
Here's my other Hondo, same neck, same problem. 870 series.
![](http://i976.photobucket.com/albums/ae241/cata1d0/ME/9B_12_S_zpss3r2ooyt.jpg)
After recently seeing a Dan Erlewine vid on straightening necks I was able to get the Red Head neck quite a bit straighter by clamping backbow into it and adding shim washers to the trussrod. Previous to that I hadn't used any washers and maxed out the rod. Luckily I didn't snap it. I dig the headstock!
![](http://i976.photobucket.com/albums/ae241/cata1d0/ME/P1100636_zpst5pzzqjc.jpg)