Jon Kaase Racing Engines has entered the street performance market with their new P51 aluminum cylinder heads for Ford 429/460 big-block engines, the 385 series cylinder heads. Keeping the 72cc combustion chambers allows users to run pump gas and experiment with different compression ratios. The P51 chambers are fully CNC-machined and have larger 2.25-inch intake valves.
Jon Kaase Racing Engines
www.jonkaaseracingengines.com (http://www NULL.jonkaaseracingengines NULL.com/)