The Supertech dual valve spring kit for Honda F20 and K20A2 engines supplies matched dual valve springs specified for those engine families. The description identifies this Supertech kit as relevant to F20/K20A2 applications. It provides a replacement spring set for valve train service or head assembly on the cited Honda engines, matching the spring configuration noted in the product listing.
Supertech Honda F20/K20A2 Dual Valve Spring Kit