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I bought a 351W to build as a side project for my 86 F150 main project. Broke the engine down and found substantial rust in the #4 cylinder. I was able to get most of it out to the point that I could cycle the piston up and down smoothly, but it left some decent pitting.
My concern is that the piston tops are marked .040 and the bore measure 4.040 with a micrometer so its already at .040, as is. I know its hard to tell from a pic, but will taking it to .060 get enough of this pitting out to make it usable?
I searched "351w .060 over" and found a bunch of people running .060 over with no issues, and others saying no way, it will over heat etc.
You can have it sonic checked if you want. But check the price of that vs. another block.
Nothing hot at all. Maybe very mild cam, probably stock heads. Not looking to build a high performance machine. What I'm up against mostly, it the fact that I finally found a complete 351 in my area that was "affordable". I know,I know...I guess you get what you pay for. If I have to search for another block or another complete motor, my little project's budget will likely be blown out of the water.
I guess it is what it is at this point. I'm just wondering if taking it to the machine shop is even going to be worth the trip. I guess they could sleeve that cylinder....
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