Eliminator Products is proud to offer four versions of performance blocks for the BBF 429/460, depending on the application. Eliminator blocks are designed with the latest technological advances in engine performance and manufacturing. All performance blocks come standard with 4-bolt, main caps 1-5 (with hollow dowels) and priority oiling. Material recipe chosen includes a higher content of carbon, silicon, nickel, chrome and manganese, similar to that found in cast nodular iron. Thick main webbing, thick pan rails, and screw-in freeze plugs all increase the overall rigidity of Eliminator blocks. Deck heights are a nominal 10.315”.