Not Ranked
Just a little adder for you Anthony, the drag racers use the 390 cast crank because its a bunch lighter. Less rotating mass, quicker rpms. Spun bearings are oiling and clearance problems, not to be blamed on what the crank is made out of.
Just for the heck of it, how many of you guys have heard which bearing always goes first in a 427?
406 is the same bore as the 428, but similarity ends there. The 406 was a solid lifter engine only and there was no oiling for hydraulic cams. Different motor mount bolt pattern too.
Anybody wants to go nuts trying to figure ford out, get a list of all of the different heads there are for FE's. Look at the ports and valve sizes. You'll be amazed. They'll all retro fit except MR, TP and SOHC. LR427 is the same basic head used on the 406.
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