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05-20-2005 03:42 AM #1
Ed, the block will have HP markings on it. Look on the right side of the block where your casting number is. You should see a HP cast into the block. All 375 and 401 HP 390's have this HP mark.
G.
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Ed, the block will have HP markings on it. Look on the right side of the block where your casting number is. You should see a HP cast into the block. All 375 and 401 HP 390's have this HP mark.
G.
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