ALUM BARE CASTING 4.400'

The Dart 9 Degree Small Block Cylinder Head is a bare aluminum casting designed for Small Block Chevrolet engines, optimized for maximum air/fuel flow and ultimate power potential. It features a mirrored valve configuration with in-line valves, allowing for a more compact intake manifold, improved tuning, and better throttle response. Cast from virgin 355-T61 aerospace alloy, it offers superior strength and integrity. This head is available for both 4.400" and 4.500" bore spacing with combustion chambers as small as 38cc. The 4.400" heads use 2.200" intake and 1.625" exhaust valves. It has non-standard exhaust and valve cover patterns.