I-5 cylinder head tool

[Dwight Varnes <mxbreed@lancnews.infi.net>]

What the heck kind of tool do I need to remove the head bolts on an 87 5
cylinder? They sort of look like torx, but are larger than a T50 and
seem to have more points. Anyone know what it is and where to get an
inexpensive one?
Please CC to my email...thanks.
-- 
"Life is too short to drive boring cars."

Dwight Varnes, insurance appraiser and car nut
1970 124 Spider (restored, mostly)
1986 Audi Coupe GT (more HP on the way)
1989 VW Jetta GLI 16v (wife's ride)
1998 Ford Contour 16v (co. car, got to pick the color)
1965 Buick Skylark conv. (American Graffiti fun)