Here's a chart that lists fuses by dimensions. You probably need the SFE type fuses which vary in length depending on amperage capacity. I'd suggest upgrading to the plug-in type self-resetting circuit breakers instead of fuses if you can find some that fit your fuse block.

http://www1.cooperbussmann.com/6/GlassTubeFuses.html

Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!