Sponsored Links (Register now to hide all advertisements)
I have been thinking about this same issue (PCV in a 59 or earlier block). I had a catastrophic failure of the full floating rod bearings and while the engine is apart i wanted to add a hidden PVC system. The problem is you cannot tap the bottom of the stock intake manifold and gain a vacuum source from all eight cylinders. So what i intend to do is bore each intake runner for a small (1/4" - 5/16") tube (weld, press fit, or epoxy) and connect those tubes via neoprene hose to a common plenum and then to a PCV on the stand pipe at the front of the block. In addition, i'am going to use some thin brass shim stock to block off the pan vent. Stay tuned. . .
Tom