Nickel in blocks???

[William]

One of the CRG Core members asked the same question years ago. The late John Z's response:

NOPE.

"Most people have no clue how a high-volume foundry operates - the "recipe" for the grey iron and malleable iron melt load wasn't changed; it was very carefully arrived at over the years, and its content was stabilized. The "high-nickel block" theory was debunked years ago, although some folks still cling to it."

John

[Too Many Projects]

Very interesting, I've always heard about the 010 block being high nickel too.
So, does anyone know what the 010, 020 509 indicate on a block ?

[RALLY]

Originally Posted by William

One of the CRG Core members asked the same question years ago. The late John Z's response:

NOPE.

"Most people have no clue how a high-volume foundry operates - the "recipe" for the grey iron and malleable iron melt load wasn't changed; it was very carefully arrived at over the years, and its content was stabilized. The "high-nickel block" theory was debunked years ago, although some folks still cling to it."

John

If anyone knew, it was the late great John Z. I asked him numerous questions about Chevy SB Heads and he always answered my emails.