• Full set of Black Diamond™ stainless steel standard size valves for engine applications listed
• All valves are impregnated by a special process to a depth of .002” with a surface buildup of .0002”
• This process improves wear properties, reduces friction and provides resistance to corrosion and wear
• Compatible with leaded and unleaded fuels• Sold as complete kits for one engine
• Made in the U.S.A.

Fits: 1966-1977 Harley-Davidson Shovelhead 74"