The ST block is essentially a volvo 850 block which has been around for years

All the volvo boys discovered the block weakness some 15 years ago

There are two options for block strengthening

Darton Sleeves / or similar liner replacement

Drill and insert alloy pegs around the top part of the liner to stop it flexing under load

I do have pictures on my home computor so will see if I can upload them later on

the 2.0 and 2.3 blocks are 71mm bore so are stronger due to thicker walls

Its the 2.4 and 2.5's that suffer the most issues as they are the same block just overbored

All Jamsport are doing is re-inventing the wheel

Nothing new / secret - Its just new to the Ford Scene