• Premium Chromoly Steel: This set includes 16 high - quality Chromoly steel retainers, CNC machined from hardened 4140 round bar chromoly steel for precise tolerances. • Cost - Effective: BC recommends these steel retainers to cut expenses, especially for high - mileage and dual - spring applications. • Ideal for High - Mileage: Perfect for engines with over 7000 miles annually. Technical Details: - Stem: 5.5mm - O.D.: 0.875' - Step 1: 0.612' - Step 2: N/A - Inst Ht: Stock - Gram Wt: 8.0

The Brian Crower BC2070S Steel Retainer Set is a great choice for Honda D16Y8, D16Z6, R18, and L15 engines. If you have a high - mileage engine (over 7000 miles per year) or are looking to save some money on your engine components, this set is for you. It can be used in dual - spring applications. The retainers are made of chromoly steel and have a stem size of 5.5mm, an outer diameter of 0.875', and they weigh 8.0 grams.