Ronstan Core Block, Series 100 - Halyard, Clevis Pin Head classicboat You will need to use

You will need to use a Manual Flywheel (not flex plate)

The O-ring seal ensures a tight fit

Impeller OMC suits 378891 775521

Not recommended for supercharged or turbocharged engines

Introducing the Fynspray Water Pump with a 5" pulley

Ronstan Core Block, Series 100 - Halyard, Clevis Pin Head classicboat You will need to useA balanced design approach incorporating functionality, performance and style makes the Series 100 Core Blocks the right choice for performance cruising or racing applications. A full contact bearing provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Glass Fibre reinforced nylon sheave, alloy cheeks and stainless fixings complete the