RBS has found this to be a great safety device for your race car and the driver. It is a seal channel kit that is designed for the .500" short TFX Hemi engine blocks. It includes two billet alum. channels that you must mount to the deck surface of your block with flathead screws that are provided insuring that the foam manifold end seals will not blow out under extreme pressure. Block has to be drilled and tapped by customer.
Foam for the rails can be purchased under part # 1100-0071.