oil galley restrictors - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

bad79f150 · 05-08-2008, 19:21

i cant find any info on what i need to install oil galley restrictors in my 390s heads they are edelbrock prformer rpms i also heard i need to enlarge the oil return passage please help

kdtrucker · 05-08-2008, 23:29

The Edel heads that you have already have smaller than stock sized oil flow holes to the rockers and the oil returns should be big enough to handle plenty of return. Street or strip those Edelbrock heads are made to bolt on and go.

FFR428 · 05-09-2008, 16:39

You can smooth and contour the return holes a bit to direct flow. They can use a little TLC there. Also ARP sells a rocker stud kit which is recommended. Springs are ok if your cam is in the .580 max range. Anything more you'll want to match valvesprings to the cam.

bad79f150 · 05-09-2008, 16:42

thanks kd i will take your word for it and slap em on there

bad79f150 · 05-09-2008, 16:48

i would still like to know what i need to install the restrictors on the factory cast heads ienlarged the oil passage from the oil pump to the filter housing and installed the bigger holed housing also has a high volume pump

FFR428 · 05-09-2008, 18:13

Nothing. You drop the jet in the hole and go. The L shape of the oil passage holds it in place. Some get fancy and tap in threaded plugs and drill the centers to size.

bad79f150 · 05-10-2008, 08:56

i thank you all for the info p.s. anyone know much about adjusting the erson roller rockers with hydraulic lifters

kdtrucker · 05-10-2008, 09:35

I am running a set of roller rockers on my 428 w/hyd. lifters and have no problem. Since the hyd. lifters have a bit more travel and give you have to adjust the rocker a couple of times to get them to be quiet. example: after I ran the engine hard and when the RPM's decreased there was a bit of lifter ticking, but still quiet at idle and normal running. I kept adjusting 1/8 of a turn untill the ticking went away, it's now quiot at any RPM.
To adjust loosen the nut and then tighten the screw to desired setting then tighten nut.
It's fairly simple

FFR428 · 05-10-2008, 13:00

You might need to try a few sizes before you get it balanced to your liking. .080-.060 seems to be the normal range of the hole size favoring closer to the .060. You do want some oil to cool the valve springs just not a Texas flood.

bad79f150 · 05-10-2008, 13:46

thank you all you have been lots of help