These new bare pair of CNC Ported Precision Race Engines Small Block Chevy heads include a revolutionary ultra casting designed after the Dart Pro 1 cylinder heads. Standard features are high grade aluminum alloy, bronze valve guides, valve seats for use with unleaded fuel, ends milled and drilled for accessories, and a straight spark plug angle. Intake features bolt pattern for both early and Vortec style intakes. These are the most affordable high quality aluminum cylinder heads on the market. Intake Runner Volume : 218cc. Exhaust Runner Volume : 89cc. Combustion Chamber Volume : 68cc. Intake Valve Size: 2.055. Exhaust Valve Size: 1.600. Intake Gasket : Fel-Pro 1206 or Equivalent.…

These new bare pair of CNC Ported Precision Race Engines Small Block Chevy heads include a revolutionary ultra casting designed after the Dart Pro 1 cylinder heads. Standard features are high grade aluminum alloy, bronze valve guides, valve seats for use with unleaded fuel, ends milled and drilled for accessories, and a straight spark plug angle. Intake features bolt pattern for both early and Vortec style intakes. These are the most affordable high quality aluminum cylinder heads on the market. Intake Runner Volume : 218cc. Exhaust Runner Volume : 89cc. Combustion Chamber Volume : 68cc. Intake Valve Size: 2.055. Exhaust Valve Size: 1.600. Intake Gasket : Fel-Pro 1206 or Equivalent.…