Alfa Romeo engines have been tooling around for over 55 years with open deck all-alloy engines. The same design grew from 1300cc to 2liters and makes over 100hp/liter in competition. Wet drop-in liners and std head gaskets seem to be entirely sufficient and historically reliable. The same engine...
A second comment regarding Alfa engines... The prevalent type since late 50's -early 60's has aluminum alloy block with drop-in cast iron wet liners, sealing with a thin rubber ring sandwiched between liner/block seat. Liner protrusion from top of block is .01-.05mm. We have opened countless...
I've been trying to get rid of exactly this in my ...flamethrower Alfa 75 24v trackday car. Background info: The 3liter engine and management come from the old 164Q4 4x4 car. My car is rwd. While everything is perfect fuel/ignition-wise (dyno mapped) and it makes a respectable 272hp on (almost)...