You might try looking for a Dry Cell Deep Cycle Battery
I've seen some Dirt Track Race Cars with them.
They have no liquid in them so no fumes and you can mount them in any
position even upside-down.
50 Chev Panel
53 Chev 1/2 Ton
>Date: Sat, 15 Apr 2000 09:13:46 -0700
>From: J & M Street <firstname.lastname@example.org>
>Subject: [oletrucks] Battery relocation on TF truck
>I would like to get the battery off of the firewall in my '55-2 hotrod.
>Since my truck will be very low to the ground I figured it would be hard
>to access if I were to mount it to the frame underneath the cab. It's a
>smaller sealed Optima battery so I considered behind the passenger seat
>inside the cab (gas tank is removed) but that is a last resort. I'm open
>to any and all suggestions, thanks in advance. -Jeff
>'55-2 short/step "Street's rod-project"
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959