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I've got a big cam for sale if you are interestedThe engine I bought unfortunately is not a big cam. So just going to rebuild mine. Using the heads off from the donor engine. If the holes for the oil squirters aren't there. Then I will just drill them out and use the oil squirters from the other block.View attachment 819518View attachment 819519View attachment 819520View attachment 819521View attachment 819522View attachment 819523View attachment 819524View attachment 819525View attachment 819526View attachment 819527
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Where do the shavings go when drilling for oil squirters? Into a main oil gallery? Can you flush the shavings out or is the oil filter the next stop for them?If the holes for the oil squirters aren't there. Then I will just drill them out and use the oil squirters from the other block.
Using the heads from the donor will work providing there are the correct ones that have the hole drilled in them into the intake port. How do you propose to just drill the holes for the PC nozzles? IIRC, the supply galley isn't even there in the non PC engines, they are targeted also, so it is a precision machining process. Why would you need to change blocks anyway? 855 head gaskets don't touch the deck, only the head for compression sealing. The little bead on the liner seals the compression. Look at the top side of the gasket, if any are blown, the top side will have a dark area where the carbon was pushed out between the head and gasket. Gasket failures were prone at the front and rear of the holes where the gasket was thin, front of #1, rear of #2, etc. Your failure is a dropped valve and running it after the failure. Pretty common, you shut it down fast enough so not too much debris went into 1-2, 5-6.Using the heads off from the donor engine. If the holes for the oil squirters aren't there. Then I will just drill them out and use the oil squirters from the other block.
This is true but we have a solution to that problem now:If memory holds, a Jake will raise the valve covers such that the hood won't clear.
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