1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

What year is my spare 12A?

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Old 07-20-14, 08:55 PM
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What year is my spare 12A?

I picked this one up to port and make some power with... Then swap into my '80. My 80's 12A does not have the sensor behind the oil filter, I assume oil pressure sensor. The spare 12A has one. So which year you think and are there other differences worth noting?
Rotor aluminum housings seem shinier, like they are coated, also the spark plug holes have a half circle shroud over them that is more pronounced.
Thanks
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Old 07-20-14, 10:21 PM
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have eye brows so 81 -85
Old 07-21-14, 07:53 AM
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Not 83-85
Old 07-21-14, 08:17 AM
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No issues with mating this to my 80 transmission or swapping with an 80 right?
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Old 07-21-14, 08:36 AM
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It will mate
Old 07-21-14, 09:38 AM
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its an 82, as it isn't an 83-85, and it doesn't have the screw in heater fitting of the 81.
Old 07-21-14, 10:27 AM
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I agree. It is an 82 due to a short pressed in fitting and no beehive.
Old 07-21-14, 10:57 AM
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Originally Posted by Jeff20B
I agree. It is an 82 due to a short pressed in fitting and no beehive.
oh beehive! its also got the newer oil filter pedestal, since they used it on the FC, its less cool than the early one
Old 07-21-14, 11:13 AM
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Great! Thanks again!
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