Originally Posted by Cab_Burge
I would much rather see .0022+ on the rod bearings keeping with the .0010 per one inch of crankshaft journal diameter rule in effect up
I look for .0025 + on steel rod street motors with 5W20Wt oil, I get 80 lbs. at 3000 RPM + with cool oil
18 to 25 lbs.at 800 RPM with 170F + oil temps with Valvoline 5W20WT, 65 lbs. at 170+ F at or above 4000 RPM with a coil and half cut off the old Speed Pro high volume black bypass springs up
I don't like 3/4 time oil pressure to the rods either tsk
I like and use the Federal Mogul, Seal Power # 4095M narrow full groove HD truck main bearings on RB and 426 hemi motors up scope


There was just a long thread on speed talk about 3/4 and fully grooved main bearings as well as oil timing where the main oiling hole lined up with the rod journal, and the degrees of the crank and when the cylinder fires loading the crank. I have always liked the 3/4 groove on mopars. If I can ask why do you not like the 3/4 groove bearings? I always went with the longer the groove the more oil to the rod.