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Ron Miller · 02-06-2010, 02:56 PM

I think your question was answered here. Their are way more Sharper Guys on this site that live & die by casting numbers. Suggest for you, spend some time over on the NHRA Engine Blueprint Specifications. That head will not be legal for any traditional Super Stocker or Stocker.

02-06-2010, 02:56 PM	#2
Ron Miller Member Join Date: Mar 2002 Location: Brownstown, Mi 48134 Posts: 196 Likes: 35 Liked 13 Times in 7 Posts	Re: BBC casting #1X157129AC still a mystery. I think your question was answered here. Their are way more Sharper Guys on this site that live & die by casting numbers. Suggest for you, spend some time over on the NHRA Engine Blueprint Specifications. That head will not be legal for any traditional Super Stocker or Stocker.