The aluminium alloy is used in cylinder blocks because

it is lighter and have good heat dissipation characteristics

material cost is low

it does not require any cylinder liners

the piston is also made of aluminium alloy

aluminium

ceramic

cast iron

fibre reinforced plastic

cooling efficiency

resistance to wear

lubrication performance

none of these

honing

porous plating

boring

shot peening

cooling efficiency

resistance to wear

lubrication performance

none of these