Aluminum Battery Box – 100 Series Complies with NHRA Rule 8:1. Required by NHRA when there is no firewall between driver’s compartment and battery. Fits most battery sizes. Embossed Taylor logo in lid. 040 aluminum box design allows access without removing the battery from the box. Hard mounts battery to the frame with supplied 3/8 bolts. Heavy duty one-piece welded battery hold down and mounting hardware included. Dimensions: 13.5″ long x 9.5″ wide x 10 high. Shown for photo reference only. Taylor 48100 Aluminum Battery Box, 13.5 x 9.5 Inch. Aluminum Battery Box – 100 Series. Complies with NHRA Rule 8:1. Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years.