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Discussion Starter #1
Seems these 4-bolt "Universal" blocks have some threaded holes I do not recall seeing on the older blocks.
Not certain if they reach oil/water.
Left/drivers side.
Want to plug them just to be sure, they are not pipe thread "probably" are dry.
One is just to the right and up from the oil filter, the other is a few inches to the left.
Purpose and thread size?
 

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Discussion Starter #3
On my truck the pivot ball mounts to the bell-housing.
What about the hole about 4" toward the left/front?
 

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Don’t remember ever seeing anything up that far.
 

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Don’t remember ever seeing anything up that far.
This is a 1970 3963512 block dated H-30-9, CE072327, fwiw. Number 1 is the threaded hole in question which was used for Corvette of that era clutch linkage ball stud.
 

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Discussion Starter #6
Yes, 1 and 2 are what I was asking about.
Ball-Stud holes should be dry. I will find some short bolts to fill the holes.
I will use sealer just to be sure as I despise leaks.

Thanks for the replies.
I hope to be able to run-in the cam on Sunday.
 

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Yes, 1 and 2 are what I was asking about.
Ball-Stud holes should be dry. I will find some short bolts to fill the holes.
I will use sealer just to be sure as I despise leaks.

Thanks for the replies.
I hope to be able to run-in the cam on Sunday.
Those clutch pivot ball holes don't need anything put in them really, just leave them blank....you don't have to fill every hole just because you aren't using it.
Neither of those goes to water , oil, or crankcase.
 

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Discussion Starter #8
Yep, psychologist have names for guys like me. ;)
I like a clean and detailed engine so will probably put some staineless button head allen screws there to block the deep holes. Aluminum would be even better nut more expensive and a little hard to find.

Not a show car build but some others will be so may as well practice my detailing.
 

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Yep, psychologist have names for guys like me. ;)
I like a clean and detailed engine so will probably put some staineless button head allen screws there to block the deep holes. Aluminum would be even better nut more expensive and a little hard to find.

Not a show car build but some others will be so may as well practice my detailing.
Oh sure,make the rest of us look bad.Just kiddin, anyway as you found out those are blind holes.Will need pictures when done.Tom..
😀
 

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don't know where you are , but here, if you don't fill it with a bolt , some bug will fill if for you with mud or a nest
 
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Discussion Starter #12
Getting close to firing up and running in the cam on the test stand.
Never thought setting up on the test stand would be so expensive or take so long.
Had to buy four radiator hoses and two battery cables to make this work.
Then join them together for reach.
I've had the stand for years but this is the first time I have tried to use it so lots of incidentals rrequired.
Could not use the new headers so had to borrow a set of factory cast center-dump manifolds.
Tomorrow I hope to complete a temporary exhaust with mufflers.
So maybe I will get it fired this weekend, a month after I started assembly!
Pics when it happens.
 
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