All American X CNC 23° Small Block Chevy Racing Heads

• End pads drilled and tapped for accessories
• 235cc CNC Ported Intake Runners
• 68cc CNC Chambers
• Bronze guides for reduced stem wear
• Available with or without water jackets

The Pro-Filer All American CNC ported SBC cylinder head has the same outstanding features as our "As-Cast" SBC heads. But we have raised the performance level with a fully CNC ported 235cc intake runners and CNC'd combustion chamber. This has allowed us to put a 2.125" OD intake valve and over 335cfm of flow.

To get the most out of your high performance SBC this is the head for you.

All American 176X Series CNC Machined Heads featuring 68cc CNC'd Chambers, 2.125/1.600 Valve Job, Angle Plug Spark Plug Orientation and 235cc intake runners. Optional Stainless Valves, Springs, Retainers and Keepers Assembled. We also offer optional solid heads (no water passages).

Series P/N: 176X (QTY & OPTIONS ADDED TO BASE PRICE AT CHECKOUT)