Oil Galley plugs at Camshaft

toolmanmike said

There shouldn't be threaded plugs. There are Welch plugs in those passages. (soft plugs) if yours are threaded I doubt that you can go back to soft plugs. The threaded plugs need to be flush or less. Let us know what you find that works. Who did this and why??

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Mike, I've torn down factory engines with short pipe plugs there. Admittedly, most have had the small freeze plugs.

To the @Ivoryk3ys78 if you want oil to the timing chain area, here's what you do. Look at the engine from the front. The upper passenger's side cam thrust plate/chain tensioner hole goes through to the bottom of the intake valley. The bolt that goes in that hole needs to be drill right through the center all the way through with an 1/8" bit. Then oil will drip onto the splash point on the tensioner, or the sheet metal point you bolt to the cam thrust plate.