hole in motor????

This is a donar motor so im not worried about using this block but for information sake i would like to know what may have caused this hole?

This is a donar motor so im not worried about using this block but for information sake i would like to know what may have caused this hole?

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Looking for picture (s).

Don't see any attached

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Looking for picture (s).

Don't see any attached

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I know i done it twice now and nothing...... but its in the intake valley with the lifters just behind the distributor. About the size of a quarter but not quite.

Flat tappet unauthorized ejection.

Normal

Normal

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Yep, that is on every single 351c out there. I think it must be the naval whe re e it was attached to its mother..

Use the block.

dump oil down on the cam gear

Like someone said it is normal and part of the casting process.

If you think that is weird look at the main bearing caps on a 7 series BMW. They cast them in place bore the mains, drill the holes for the main caps then just break them off. They put the bearings in and crank and bolt them back. They claim is more rigid than machining and matching. They were done this way back in 90's might have changed by now. Maybe part of the reason it was voted the worst car in the world last year.

David

its normal, see picture[/align]

Ok cool. And how about this one then...... looks like a patvh job... dont look good anyways

That one's a different story. I would remove it to see what's under it.

Ok cool. And how about this one then...... looks like a patvh job... dont look good anyways

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That is not good !!!

Not normal!

Lol ok thanks. Plan to take it apart soon

That second one could have been from a number of things....frozen, dropped valve, thrown rod...

It's normal. There is also a hole just like it in many other Ford engines. I have one on the 289 I'm working on. I believe Ford did it to control windage throughout the engine.

It's a rear vent hole for excess pressure

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Sounds good thanks guys. Ill post pixks whwn i get it apart foe the oher unknown.

I love this thread. This comes up every once in a while. I remember the first time I saw that hole and thought WHOA what the heck.