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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. For a flow chart click on Technical Information below. They have 119cc or 115cc chambers and may be purchased angle milled to 110 cc or angle machined to 98 cc.
The 26 dgree valve angle is the same as stock GM big block heads and 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. These are also available with 1.645 OD triple valve springs All Bare Heads from Brodix DO NOT have valve jobs done or guides honed. |
On all complete assembly packages, it is very possible that the valve springs are not correct for your camshaft. All valve springs should be checked for compatibility to your camshaft. Severe wear of valve train components and severe engine damage could result from failure to do this. Check spring requirements before heads are installed on the engine. If in doubt please contact your camshaft manufacturer or USA Performance Parts. We do carry optional springs for all of your needs.
