Quote:
Too little flow left over at # 4 to feed the rods enough. Doesn't matter what the gauge says, if it is leaving the main bearing so fast there isn't enough to feed the rods, they starve. I would restrict the passage to the rocker shafts, or feed them externally to keep max oil to #4 main. Also while the motor is down, check clearances on the lifter bores and lifters themselves and any other place oil can bleed off (cam bearings?)due to wear.
(EDIT)#6 only (my bad; thanks ModernCylinder) is going to get the least amount of oil based on the design of sending oil to the rocker shafts. Depending on what rockers/shafts you are using you may have to restrict oil to heads (usually done in the block on stock oil systems).
Last edited by Dads426; 09/05/11 05:54 PM.
