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The CID JK400 Big Block Chevy Cylinder Heads flow an impressive 400CFM from as cast ports on a standard bore
We added 0
One pair of 2
It's recommended that Uncoated Titanium valves be used with bronze valve seats
Gen V LT Solid Cylinder Head Option Deck Height_ 9.24" The CID JK400 Big BlockSolid Cylinder Head Castings Option available for our LS, Gen V LT & SB Ford SC2 Heads. This option removes the water jacket from our cylinder head castings. If your looking for the strongest cast cylinder head option available, this is it. Ideal for those super high boost applications where one might exceed the structural rigidity of a water jacketed casting.