The Mercury Racing 400R features a new naturally aspirated V10 5.7-liter powerhead that is based on the proven design architecture of the V8 4.6-liter Mercury Racing 300R model. The 64-degree powerhead displaces the 5.7 liters while maintaining the compact width required for 26-inch center-to-center mounting on multi-engine transoms for seamless installations on new boats and repower applications. The Mercury Racing V10 400R will be available in four lengths – 20”, 25”, 30” and 35” – to accommodate any single or multi-engine performance application.
