Originally Posted by
cosworth
Is the Subaru block originally designed as a alloy block? The Cosworth edition of that apparently copes with 1000bhp.
Why should Cosworth make a cast iron 200 block, when they have a more modern light weight aluminium alloy block?
because there is a big market for sub £1000 cast blocks with proven capability and a very small market for £3650 alloy ones with none.
If I was spending nearly 4k on a block I would want a lot more back up as to its capabilities from cosworth than they seem to be offering