Patrickt Pat your know there is a big different between Nascar cranks and rods and 427SO or 428 cranks and rods. It is very possible that the guy who put his motor together used stock 427 bearings. They are NOT INTERCHANGABLE with when using a Nascar crank and rods. This info is from multi articles on FE builds. The bearing being used in most FE motors are 3/4 groove. Some are full groove on the mains. I just took these off my 452 motor. and with the stroker kit installed 3/4 grooved only after calling Barry R. who I got the kit from. He explained the change in design. The info you have for
oil pressure doesn't include the Nascar motor. IMO if you want to run a heavy bottom end motor on 10-15 psi of
oil thats your choise. If the bearings get spun on the bottom of this motor are you going to help repair it?
Have you every seen bearings in a motor damaged from hi
oil pressure? I am still waiting for the first set. Is high oil pressure hard on the gears of the cam and distributor, yes but there are some things to help the wear problem. I am a student of the FE. I have been a auto mechanic since 73. I am not a pro, but have seen enought motors and damage to know what works and what doesn't. Every magazine out has articles on oil now and how and why breakins either fail or work OK. Clearances on motors have changed too with the oil changes. I wish I had the money and place to do what Barry R. and Jay B. do. A dyno for motors and 1020 liquid head flow bench is all you need. I tell everyone about a peroiler for there $20K motors and how dry startup do 80% of the damage to any motor. I have a friend who is a hydraulics engineer. We talked for hours about how much pressure is needed to keep a rod floating and not letting metal contact metal. Do you know which cycle is hardest on a motor? I will tell you next time. 80% have thought wrong. I am one of them. Have a nice day Rick L.