- Mono-cylinder and crankcase block with a mid mounted camshaft, extended crankcase, and a closed deck. Extended crankcase to inprove rigidity and allows for better oil pan seal, this set-up is used typically for medium duty petrol engines
- Loop flow cylinder head with siamesed intake ports. Supposed to improve cold running by pre-heating the inducted air with hot exhaust gas manifold
Made out of cast iron 3.5% Carbon, 2.25% Silicon, and o.65% manganese.
Just some random terminology I came across.
