Cylinder Wall Thickness

**SuperNovaSS** · #1 09-03-2009, 12:29 AM

Can anyone tell me what an acceptable cylinder wall thickness for a Big Block Chevy would be? I have a 396 that has been bored to a 427/454. The block was sonic tested and the results are as shown. Is this acceptable?

Thanks,

Jason

**SuperNovaSS** · #2 09-03-2009, 12:33 AM

**Rixls6** · #3 09-03-2009, 02:22 AM

I'd have to agree that .078 is too thin. Take a feeler gauge out and look at that thickness. YEOW!

**SuperNovaSS** · #4 09-03-2009, 02:31 AM

I thought so too. Just curious how thin is too thin?

Thanks,

Jason

acelr8 · #5 09-03-2009, 06:30 AM

I use .150 as a minimum.Jeff

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