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Potentially. We had a "any 427/454 block will go .060" over" rule born back in the days before we had a sonic tester in the shop. I figured the rule would apply for the Gen V and VI 454 blockls but I wanted to be certain. Cust brings in a Gen V block looking for some performance so I sonic test the block before I rough it. Turns out the block suffers from core shift and some of the non thrust walls are showing thin. I offset the boring bar and only went .030" over.

Long story short, you need to sonic test the block to prove it's a good candidate.
 

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PowdercoatBill
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Discussion Starter #3
Potentially. We had a "any 427/454 block will go .060" over" rule born back in the days before we had a sonic tester in the shop. I figured the rule would apply for the Gen V and VI 454 blockls but I wanted to be certain. Cust brings in a Gen V block looking for some performance so I sonic test the block before I rough it. Turns out the block suffers from core shift and some of the non thrust walls are showing thin. I offset the boring bar and only went .030" over.

Long story short, you need to sonic test the block to prove it's a good candidate.
Thanks for the info. I'll take it over to the machinest and have him test it before we go any further.
 
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