Profiler 176XC230493 - Cylinder Head Cast Aluminum Chevy Small Block 235cc 68cc 23Degree 2.125" x 1.600" Angle Plug, CNC Ported, Assembly w/ 1.437" springs for solid flat tappet or Hydraulic roller lifters

Profiler 176XC230493 - Cylinder Head Cast Aluminum Chevy Small Block 235cc 68cc 23Degree 2.125" x 1.600" Angle Plug, CNC Ported, Assembly w/ 1.437" springs for solid flat tappet or Hydraulic roller lifters

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.

• 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
  

Series P/N: 176X SBC Head Specifications
Material:    Aerospace Specification, A356 Aluminum Alloy (Primary Virgin Ingot)
Valve Angle:    23°
Bore Spacing:    4.400" Standard
Valve Length:    +200"
Intake Port Volume & Shape:  235cc Rectangle Shape
Combustion Chamber:    68cc with CNC Finish
Intake & Exhaust Valve OD:    2.125"/1.600"
Intake Port Flow:    336cfm with 235cc Port
Deck Thickness:    1/2"
Spark Plugs:    Angle Plug Revised location to improve flame travel. .750 Reach, Gasketed (NGK R5671A-7 or colder)
Milling:    Angle - .0070" per cc Flat - .0050" per cc
Valve Guides:    Manganese Bronze to assist in extending valve life
Rocker System:    Improved Solid Rocker Bar for added stability. May use standard or majority of aftermarket.
Valve Seats:    Ductile Iron
Spring Pocket:    Maximum of 1.650 (no deeper)
Engine Size:    400 + cid / 7500rpm
Valve Covers:    Drilled for both, center and rail bolt
Application:    Street, Strip, Circle Track, Marine

Air Flow Detail #176X SBC CNC All American Head - 235cc Runner

Pro Filer Small Block Chevy CNC All American Heads with 235cc Intake Runner, 2.125" Intake Valve and 1.600" exhaust valve. Flow data based on Cylinder #1 intake and exhaust port. Flow measured at 28" of depression.