
Posted by Preston Grant IV
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on 5/24/2006, 10:44 pm, in reply to "1971 Gran Prix vin # decoded"
64.12.116.138
1971 GP's serial # will not tell you if it came with 455. Generally SJ were equipped with 455's and J's had it as a extra cost option. A build sheet under door panels or under back seat would help you. Otherwise send serial # to PHS for documentation. Another good indicator would be a 12 bolt rear in the car as they came with 455's.
thepontiacman@yahoo.com
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