[DanEC]

They ran those 427 FE for 24 long hours at Lemans with good reliability. From memory I think they tried to limit engine speed to 6,000 rpm but that was still a pretty amazing feat for a Detroit engine. The FE always struck me as a step in Detroit engine development - ahead of the 409, close in parity to the 413/426 Max Wedges (except in vehicle weight) but a step behind the Chev MKIV 427 and the 426 Hemi. It was an era of fast moving engine development.