Astec RIB Yamaha 350 V8 July 31, 2017February 8, 2023 Karel Overlaet, RIB Advocate This Astec RIB is powered by a Yamaha outboard 350 HP V8 for the Guardia Civil Geas operating at Altea, Alicante (Summer 2014). Others Also Read...Exclusive: Discover the Making of GEMINI WR880 12 StepsRibeye A683 Custom RIB with Yamaha 250 V6A Hydrogen Outboard: Yamaha's PrototypeThe All New Ribcraft 350 Leisure Surprises