May I offer one of the best head restraint systems I have seen to date.
Go to www.ispseats.com
. Kris VanGilder is the guy John Force went to
when Meddian got killed to update his fleet of hotrods.
Go the the custom drag head surrounds and look at what he offers. The
one that goes around the side of your head is $325. That includes the
aluminum plate that you mount, return to him and they pad it and install
the covering. This system is SFI 45.2 approved. This is a triple density
foam, soft on the outside to stop the eye shutter from the vibration you
receive when the helmet touches the hard padding.
Donna & I meet with Kris at PRI and We were impressed with Kris's
credentials in seat testing...he did all of the impact testing for
Butler seats for 11 years before going on his own. His custom seats
start about $900, $200 less that Kirkey sells them for...and they are
built for you.
As far as buying the foam to do it yourself, try BSCI.
They sell sheets that they will slit to the
thickness you need.
Kris buys all his foam from BSCI.
Kris will be making all of the padding for my new liner.
Sure hope this helps you,