Any help identifying this eng

Mayfairs442

Not-quite-so-new-guy
Nov 15, 2021
14
3
Picked it up from a guy who just wanted it gone. I think its a 66-70 cutlass 350/th350 combo. Anyone have any idea?
 

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ELCAM

Master Mechanic
Jun 19, 2021
276
43
The 395558 with the big 2 after it says this is a 68-76 350 block. Some of the date codes might indicate a 69. Need to completely clean the stamped number pad on the front and get the number off the oil fill tube to get more detail,
 
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Mayfairs442

Not-quite-so-new-guy
Thread starter
Nov 15, 2021
14
3
The 395558 with the big 2 after it says this is a 68-76 350 block. Some of the date codes might indicate a 69. Need to completely clean the stamped number pad on the front and get the number off the oil fill tube to get more detail,
Thanks Elcam. Number on the oil fill tube says 9420162 and the pad says 071434470
 

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Mayfairs442

Not-quite-so-new-guy
Thread starter
Nov 15, 2021
14
3
So it seems this is a low compression engine from 73-77. I say that because it has #8 heads which I've read are pretty bad. I must be reading the tab and oil fill tube wrong though, because from my understanding its a 69 or 70 but those didn't come with #8 heads
 

ELCAM

Master Mechanic
Jun 19, 2021
276
43
My guess is the leaded gas heads got holes in the valves and were replaced by hardened seat unleaded gas heads later in its life.
 
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