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454 Big Block Casting Numbers

24945 Views 6 Replies 6 Participants Last post by  LS7, 
T
Can anyone please guide me in a direction where I could find out exactly what these numbers mean on my Big Block. Im guessing its the build date but couldnt find anything on here with a database. The casting number on my block are 361959 (P). Then theres C1677? From what Ive gathered the block is (P) Passenger big block from 73-76. Is this correct? Any guidance would be appreciated Thanks! :D
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T
Is this a good thing or bad thing?:confused: Could there be a possibility of this being a passenger block? What does the (P) on the casting number designate?
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