The BB-2 X head works well with a light car or large engine (509-555 cu in). It has a 340 cc intake port and flows over 360 cfm with only the bowls blended and the intake ports matched to the gasket.

The BB-2 X may be purchased angle milled to 110 cc or angle machined to 98 cc.

These cylinder heads accept all standard pistons, intake manifolds, and rocker arms. The exhaust ports are raised .600 higher than stock. Valve cover rails are now raised to assure no oil leakage.