Re: Stewart's 1955 Packard 400

Posted by HH56 On 2020/6/24 20:49:43

Check out bulletin 55-T5 where it details the oil flow to the heads and rocker arms. I doubt the mis drilled passage would still be an issue without being repaired by now but possibly there is still some crud in the passage or the rocker pedestal bolt does not have the same amount of clearance for oil to flow past as the one on the left side.