Quote:
Originally Posted by ss wannabee
Having an argument with a friend. I always thought that they were only available in the Chevy Performance Catalog...usually as a Bowtie block or something like that.
He says that some production-line blocks were high-nickel as well. Never heard of this...checked online...and the banter goes on and on...
Need the straight scoop..First WHAT is a high-nickel block? Isn't it really the percentage of (tin) in the cast-iron slurry at the foundry? Could the Bowtie or similar performance-catalog blocks have percentages of 10% or more?
Did regular cast blocks have a small percentage...(maybe 1, 2, or 3 %) anyway...and did GM adjust this... as needed...for production-line performance or Truck applications?
You machinists out there probably know...I hear these "hard" blocks are tough on cutting bits and stones....
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I think if the percentage of nickel or tin was 10% or more the metal would no longer be 'cast iron'...it would be a different alloy.