Here is an awesome way to get the maximum possible weight located exactly where it needs to be. use Pure LEAD WIRE. The lead wire is approximately 3/8th of an inch in diameter and 5 1/4 inches long (total weight is about 4oz).

For car builders using Derby Champ Pre-Drilled Pine Blocks and Wedges please note that our lead wire fits perfectly into the holes drilled in these products.

Caution: Lead is toxic if taken internally. Keep all lead products away from mouth or surfaces where food is prepared. Wash hands thoroughly after handling. Do not melt or sand lead! Keep all lead products out of the reach of children. If lead is ingested, contact physician immediately.