Quote:
Originally Posted by DavidBoren
That is a very sexy motor. And although impressive, it is more than I personally need. I also have some tingling fear of boosted LS7 blocks. No real reason. Haven't even heard that many horror stories about too much boost grenading the block. I just personally wouldn't do it. Note also, that I chose the small bore block specifically for its thicker cylinder sleeves. From what I understand, the LS7 has such thin sleeves that not even GM would put boost to it, and GM put a turbo on 4.3L V6. Lol.
Sweet engine though. Very impressive curve. Thank you for sharing this.
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We've not broke one yet (with ~30 of them running around now starting in 2008). And our guinea pig Mark is not known for driving his cars gently......
The advantage of making really big power is you just can't make it for very long - run out of real estate.
Don't get me wrong, this combination would likely never pass GM's GED (Global Engine Durability) test - that and a 100K mile powertrain warranty prevent factory from ever offering this.
Key is optimized design with combination of high-quality parts and precision machining & assembly. These engines will be very unforgiving for carelessness.
Dave