Turning into the 'dead' engine is dangerous.
It was on 707s!
The published VMCA figures increased by 20kts with wings level and we only had one hydraulic system running the Rudder boost. If you lost that - the VMCA increased by about 60 kts.
(See accident report for B707 base training accident Prestwick Airport in 1977)
Edit should be "VMCA figures increases by about 40 kts wings level"