CLASS RACER FORUM - View Single Post - High-Nickel SBC Chevy blocks?

Eddies66 · 03-13-2013, 09:30 AM

Edit: David Vizard says this in his book "Budget Building Max Performance Chevy Small Blocks:"

"The best blocks to get are the blocks that have a number 010 and 020 under the timing chain cover. These have 1% tin, and 2% nickel. The tin is used to help the metal flow better into the casting mold.

These blocks are the least prone to cracking. Also, because they pour more easily, they have the least problems with hot spots caused by porous metal. If you find a block that only has one number that's either a 010 or a 020, this means it has no additionally added tin, but does have one or two percent nickel."

03-13-2013, 09:30 AM	#3
Eddies66 VIP Member Join Date: Feb 2010 Location: Rancho Mirage, CA Posts: 1,308 Likes: 300 Liked 881 Times in 452 Posts	Re: High-Nickel SBC Chevy blocks? Edit: David Vizard says this in his book "Budget Building Max Performance Chevy Small Blocks:" "The best blocks to get are the blocks that have a number 010 and 020 under the timing chain cover. These have 1% tin, and 2% nickel. The tin is used to help the metal flow better into the casting mold. These blocks are the least prone to cracking. Also, because they pour more easily, they have the least problems with hot spots caused by porous metal. If you find a block that only has one number that's either a 010 or a 020, this means it has no additionally added tin, but does have one or two percent nickel."