block good enough for core, it is really crush that retains the bearing not that little notch and all that should clean up with a line bore. TSP has nice sleeved blocks....
So I was watching a LS7 tear down (three race seasons) and was surprised to see the mains were walking, looking at your main failure I'd be thinking something like this:
https://katechengines.com/i-30497627...n-caps-lt.html
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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