Who has the rundown on the evolution of the LA series engine?


Thank you. It helps some but I was curious about the later 360s.
I have an engine I bought from a friend…

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He pulled it when he thought it had a blown head gasket. The casting on the right side is faint.

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It looks like 5 7 90.
It has the Air Gap intake and Holley cast aluminum valve covers. I would guess that this year should be an OEM roller camshaft version.
I’ll return soon…