thanks for input guys ,and yes it does look expensive at the outset

i wonder though if you do a comparison with building up using a old 200 block how it would look .

im not talking mega power ,say maybe 550/500 .its about reliability over the years .cracked blocks,running bearings through block flex etc

all engines either way needs ,cranks ,pistons rods ,spray jets etc and someone to put them together either way .
you do however do away with machining costs and you are using superior materials.

i would like one bigpower engine ,so just debating the pros and cons