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Jim Wahl · 04-27-2010, 12:55 PM

Block casting number does not matter. It just must be a 360 block if you are claiming a 360. Internals must be the approved parts as published in the NHRA guide. Jim

04-27-2010, 12:55 PM	#8
Jim Wahl Veteran Member Join Date: Jan 2002 Location: Central Florida Posts: 5,844 Likes: 667 Liked 683 Times in 129 Posts	Re: 73 Plymouth duster question Block casting number does not matter. It just must be a 360 block if you are claiming a 360. Internals must be the approved parts as published in the NHRA guide. Jim __________________ Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 NHRA D2 National Open Stock Champion 1982 NHRA D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association.