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so im disassembling my 390 and i go to pull out the pushrods and they're solid, as in no hole through the center. is this normal? i've never seen them before.
Yea, the rockers get the oil thru a oil passage in the head, look under one of the two center rocker shaft stands, you'll see the passage. This is the one everyone restricts with a Holley #90 jet to cut down on the flood of oil that gets up there.
Hydraulic and solid cams on FE's use different pushrods. The hydraulics have a ball end, both ends. Solids used a cup on the rocker end. There was a different fix to restrict the oil to the lifters, that involved a restictor in the lifter gallery passages