My lsx 454 is junk. Lsx454 lsx-454
04-27-2011, 08:19 AM
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My lsx 454 is junk. Lsx454 lsx-454 My engine block was dimensionally defective having less than the advertised metal thickness. An important component of the engine block’s strength comes from having enough metal thickness to support a load.
The industry standard and Chevrolet’s standard for cylinder wall thickness is a minimum of .200 thousands of an inch. Summit Racing and Chevrolet’s own advertising for the lsx block states “maximum 4.250 bore at .200 minimum wall thickness”. My defective block had a intentional smaller 4.185 bore, hence the remaining cylinder wall thickness should have been .2325. However the sonic testing that was performed post-mortem discovered a bore thickness as little as .177 which effectively cheated me of .0555 thickness of metal or using a simple analogy in dollars, I was entitled to $232.50 but only received $177.00 dollars. A shortage of $55.50 or 24 percent!
The industry standard and Chevrolet’s standard for cylinder wall thickness is a minimum of .200 thousands of an inch. Summit Racing and Chevrolet’s own advertising for the lsx block states “maximum 4.250 bore at .200 minimum wall thickness”. My defective block had a intentional smaller 4.185 bore, hence the remaining cylinder wall thickness should have been .2325. However the sonic testing that was performed post-mortem discovered a bore thickness as little as .177 which effectively cheated me of .0555 thickness of metal or using a simple analogy in dollars, I was entitled to $232.50 but only received $177.00 dollars. A shortage of $55.50 or 24 percent!
04-27-2011, 10:53 PM
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