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Engine decode help

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Old Sep 29, 2013 | 04:26 PM
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Default Engine decode help

could somebody tell what this engine is from
i have a chance to buy hoping it is a numbers matching for my 62

Stamp on pad,,, FO504YA
engine casting 3782870
thats all i have so far

Thx
Steve
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Old Sep 29, 2013 | 04:29 PM
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its from a pick up truck whats the casting date
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Old Sep 29, 2013 | 04:36 PM
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Originally Posted by Canuck62
i have a chance to buy hoping it is a numbers matching for my 62
Steve, unless the engine has your serial number stamped on it, it will never be matching numbers.
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Old Sep 29, 2013 | 04:39 PM
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Originally Posted by Nowhere Man
its from a pick up truck whats the casting date
I don't know,,, all the info I got was what I posted
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Old Sep 29, 2013 | 04:41 PM
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Originally Posted by 62Jeff
Steve, unless the engine has your serial number stamped on it, it will never be matching numbers.
Thank You
and my wife thinks im to old to learn
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Old Sep 29, 2013 | 05:03 PM
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the closest thing you can get is a dated block to your car and the YA suffix code was only used in 65, and 68. and since you have a 62 it wont work for that angle of matching
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Old Sep 30, 2013 | 05:44 AM
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Based on what is supplied so far, two possibilities:

1965 327 185hp manual trans, 2 bbl carb, in a large truck
1968 327 240hp manual trans, 4 bbl carb, in a truck

Same code was also used in 66 and 69 for a 366 big block truck engine, but clearly not what this is.

Since the engine plant is listed as F, and not V, is has to be the 1965 engine. The switch from F to V for the Flint engine plant occurred in the 1967 model year.
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