Super Alloy Engine valves represent the highest level of advancement in valve technology. These valves are designed to meet the extreme thermal demands of today's Nitro, Supercharged, Turbocharged and Marine engines Fits: HONDA PRELUDE 2.2L - DOHC VTEC 16 VALVE (H22A1-A4) - 1993-2000 Dimensions: Head Diameter: 31mm Diameter Shank: 5.48 mm Overall Length: 107.1mm Tip Length: 1.9 mm Super Alloy Engine valves represent the highest level of valve technology advancement. These valves are designed to meet extreme heat requirements in today's Nitro powered, supercharged, turbocharged and offshore engines.Fits: HONDA PRELUDE 2.2L - DOHC VTEC 16 VALVE (H22A1-A4) - 1993-2000Dimensions: Head diameter: 31 mmStem diameter: 5.48 mmOverall length: 107.1mmTip length: 1.9 mm