Model A Modern Valve Set
Finally, a totally upgraded valve and guide set from Performance Engineering for use in all stock, performance and racing Ford Model A engines!
Using the original design of Model A valves and guides, these valve sets have been re-engineered and fully upgraded to deliver optimum performance. They provide lower wear characteristics and greater extended life compared to anything else on the market! This is a result of modifying some of the stock dimensions on the valve head and 45 degree face, as well as tightening up the tolerances on both valve and guide. The valve sets also have a modified valve stem length to compensate for decked blocks and different grinds of camshafts. The result is an increase in compression and improved valve sealing under all conditions. The Model A valves, including Supercharged and Turbocharged versions, are manufactured using the same high quality stainless steel used in year 2000 and newer American, Japanese and European cars. They can easily endure 1,750 degrees of heat without damage or sacrificing performance. The guides are also upgraded by using today's corresponding version of high grade, wear resistant cast iron.
These valves have been "Tufftrided", a special surface treatment used by Ford and some European car manufacturers. This treatment produces a wear, scuff, and seizure resistant surface, giving valve stems increased wear resistance and improved oil retention while reducing friction. Both valves and guides use Modern High Tech CNC (Computer Numerically Controlled) machines inour ISO-9000 Certified Factory. This ensures a precision fit between the valve guide, engine block and valve stem. Our high-tech CNC machinery also employs a special laser to monitor valve stem size and proper valve face angle to ensure precision valve seating and stem-to-guide fit. Each set includes eight valves, eight guides, eight retainers and 16 keepers. The original Model A valve spring set or a replacement set may be used. Valve guides look exactly like the original but are one piece construction and can be installed by hand without any special tools.