Thread: Olds block #s
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Old 11-15-2011, 07:51 PM
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speedrider speedrider is offline
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Quote:
Originally Posted by Grand73Am View Post
Correct. It must not be the original engine to the car.

Are you sure it's a 403?
I am definitely sure it's a 403. It has the tell tail oil filler cap just forward of the breather cover. And the 4A heads.

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