Jeff, a thicker replacement seat cushion in a Westy can be handled by removing the pivot mechanism to bring the seat height back down by the thickness of the removed piece.  That might gain you a crucial inch of clearance.
Stephen 

     On Monday, April 20, 2015 1:03 PM, Tom Buese <tantonbz@GMAIL.COM> wrote:
   

 I have an 84 Westy w/ original seats that are comfy for long drives of over
600 miles one way- I am only 5'-10", 200 # w/ small butt, I think, so it
must be one's particular butt profile.  I have however, rotated the driver
& passenger seats to even out the wear on the seats.  YMMV.

Mr. BZ-Oct 83 Westy w/ 168k miles on it.

On Mon, Apr 20, 2015 at 12:42 PM, Blake Sartin <sartin@gmail.com> wrote:

> I love my Eurovan front seats. Not a terribly hard modification, and if you
> ever need to put the original seats back, nothing has changed.
> On Apr 20, 2015 11:56 AM, "Jeff Stewart" <fonman4277@comcast.net> wrote:
>
> > After the 600 mile round trip this weekend to Everybus, I'm looking for
> > seat upgrades/alternatives. My 30 year old stock seats just aren't that
> > comfortable to my 57 year old butt & back. Does new seat foam really
> help?
> > As for seat alternatives, my problem there is my 6'4" height. I really
> > can't go with too thick of a seat cushion as my head almost touches the
> > roof now! TIA, Jeff
> >
> >
> > Sent from my Verizon Wireless 4G LTE smartphone
>

--
Tom Buese