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Old February 10th, 2009, 04:01 AM   #1 (permalink)
JOhnc
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Engine ID help

Guys,
I'm about to buy what i hope is a 350 Olds engine and box. I've been informed that the casting number is 557752 - 3c.
Now the 557752 seems to say that indeed it is a 350 of around 1980 but i cannot decode the "3c" suffix.
Assuming it has been read correctly, can anyone shed any light on this ?

John
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Old February 10th, 2009, 10:46 AM   #2 (permalink)
joe_padavano
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Quote:
Originally Posted by JOhnc View Post
Guys,
I'm about to buy what i hope is a 350 Olds engine and box. I've been informed that the casting number is 557752 - 3c.
Now the 557752 seems to say that indeed it is a 350 of around 1980 but i cannot decode the "3c" suffix.
Assuming it has been read correctly, can anyone shed any light on this ?

John
All the windowed main 350s from 77-80 carried the #3 identifier. The A - B - C suffix just indicates a minor casting revision. Not a big deal. C probably means it's a late 1980 casting, one of the last Olds 350 gas engines.
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