SB Chevy Aluminum Cylinder Head - Bare 

High Grade Aluminum Cylinder heads, featuring a permanent mold "As-Cast" technology surfaces on the intake runners, exhaust runners and 
combustion chambers that allows for extremely accurate and repeatable port location/performance. 
These budget friendly aluminum cylinder heads are perfect for your 350 to 400 cu. in. operating below 6,000 rpm. 
Made from high grade aluminum, bronze valve guides, hardened seats, advance port design for greater air flow
This head features a thicker deck design so they can be used on nitrous, turbocharged and supercharged applications.
Dual valve cover bolt pattern, will accept either center bolt or perimeter bolt valve covers.



Specs & Information: 
  • Fits: Small Block Chevrolet 283 302 305 327 350 383 & 400 V8 Blocks up to 1986
  • Material: Aluminum
  • Style: Bare
  • Finish: Natural
  • Intake Runner Volume: 195cc
  • Exhaust Runner Volume: 77 cc
  • Combustion Chamber Volume: 64 cc
  • Intake Port Shape: Square
  • Exhaust Port Shape: Square
  • Spark Plug Style: Straight
  • Intake Valve Diameter: 2.020 in.
  • Exhaust Valve Diameter: 1.600 in.
  • Valve Cover Mounting Style: Dual - Perimeter & Center Bolt
  • Accessory Bolt Holes Drilled: Yes
  • Intake Valve Angle: 23 deg.
  • Exhaust Valve Angle: 23 deg.
  • Valve Guide Material: Manganese Bronze
  • Valve Seats Machined: Yes
  • Valve Seat Machine Style: 3-Angle
  • Valve Seat Material: Ductile Iron
  • Steam Holes Drilled: No (can be drilled if necessary)
  • *Notes: Bare Head Only (Does NOT include any hardware)
  • **Notes: This listing is for One Cylinder Head ONLY