6:5:1 compression ratio for increased engine performance
Improved coolant circulation openings for even cooling from front to back
Modern grade cast iron construction for durability and accuracy
Dimensionally accurate fit for easy installation
Summarized by Shop
This newly manufactured Model A cylinder head is identical in appearance to the original heads manufactured by Ford for the Model A engine. It has a 6.5:1 compression ratio and improved coolant circulation openings to maximize even cooling from front to back. It is manufactured with modern grade cast iron and is dimensionally accurate.