what steps are involved in change from oiling through the rocker shafts and oiling up throught the push rods?, thanks kenny
changing the oil system This is a little different. :Brow: The oil hole that feeds the rocker shafts should be plugged.[at the top side of the head] You need hydrolic lifters that are for an engine that oils thru the pushrods. [check the diameters,heights,ect. you need hollow pushrods from the pushrod oiling system. [probably custom ] If you can find the neccessary components then the rocker arms would backwards oil, but I cant see any advantage to doing this. :Smarty: That being said , I really like that type of thinking [out of the box] this type of thinking makes for a good mechanic and hot rodder. :laugh:
If your asking about the 69 buick 350 that's in your signature, I can help a little. It's actually a common upgrade, and easily performed. You will NEED the following: A set of '70-up rocker arms and shafts A set of '70-up push rods A set of '70-up lifters 1 intake bathtub gasket 1 set of valve cover gaskets A length of aluminum rod- the same diameter as the oil passages in the head. Cant remember the exact diameter needed, maybe someone can help You MAY want to include the following: A new [better] cam-shaft A new timing chain [is it about time?] Oil pump rebuild kit WITH a booster plate Water pump, thermostat, belts, hoses [going into the engine, may as well do it right] The procedure: Remove intake and valve covers. unbolt and remove old rockers/shafts. Remove pushrods and lifters [lifters can be a pain in the :moonu: ] Cut aluminum rod to proper lengths, and drive/wedge into old oil passages Install new components, and re-assemble
Cut aluminum rod to proper lengths, and drive/wedge into old oil passages Install new components, and re-assemble where is the old oil passages in the top of the head?, thanks again kenny
They are actually INSIDE the bolt-holes where the shafts bolt to the heads. If you look inside them, you will see the threaded holes the bolt goes into, and another hole going down into the head at an angle. That's the oil passage. Keep us posted, I'll be happy to help in any way I can. I'll dig around and see if I can find the proper size you need for the aluminum dowel rod.
4 of them, the front two, and the rear two. Easy to see them- once you get it apart and know what your looking for
I will be doing the same exact conversion on the 430 I am building. Why wouldnt the oil holes be plugged when you bolt up a '70 and later rocker arm shaft? o No:
