SBC 245cc Pro-1 Head CNC 66cc A/P 2.100/1.60 Bare

The SBC 245cc Pro-1 Head CNC 66cc A/P 2.100/1.60 Bare by DART is an exceptional choice for serious small-block Chevrolet engine builders looking to enhance airflow and cylinder head performance. This bare casting is designed for enthusiasts who require precision-ported heads that can support high-RPM builds and competition-level power outputs. Whether you are upgrading a street engine or building a dedicated race platform, this Pro-1 head provides the necessary flow characteristics to unlock additional horsepower across the RPM range.

Featuring a 245cc intake runner volume, this head offers excellent velocity for both naturally aspirated and boosted applications. The 66cc combustion chamber is engineered for efficient fuel burn and optimal quench design. With a 2.100-inch intake valve and a 1.60-inch exhaust valve configuration, this head balances low-end torque with high-RPM breathing capability, making it suitable for various performance setups.

Builders will appreciate the CNC-ported passages that ensure a consistent wall finish and repeatable flow paths, eliminating variances found in hand-ported castings. This bare head arrives unassembled, allowing for complete control over final assembly specifications and valve selection. It is compatible with small-block Chevrolet applications, making it a versatile choice for a wide range of engine displacements.