Product Description Specifications CNC-machined for consistency, these 7 degree lightweight tool steel retainers feature light weight, exceptional strength and wear characteristics. Fit Dodge V10 Viper engines with 1.290" OD springs such as our 26926 dual springs. Category: Engine Components>Valve Springs, Retainers Core: N LTL: N MPN: 1737-16 Proposition 65: Y Special Order: Y