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Ed Carpenter · 04-23-2008, 08:59 PM

NHRA/IHRA list two casting numbers for 283 heads. Which one is better to start with for super stock the 520 or the 896? I have 3 sets of the 896's. Thanks

04-23-2008, 08:59 PM	#1
Ed Carpenter Live Reporter Join Date: May 2006 Location: Dripping Springs, Tx Posts: 2,709 Likes: 186 Liked 520 Times in 132 Posts	283 heads NHRA/IHRA list two casting numbers for 283 heads. Which one is better to start with for super stock the 520 or the 896? I have 3 sets of the 896's. Thanks __________________ Ed Carpenter 2005 Chevy Cobalt A/SM Race Engine Development