Melling 10295 Oil Pump High Pressure Gen III IV 4.8 5.3 5.7 6.0 6.2 LS1 LS2 LS3
The factory LS oil pump is known to suffer from cavitation above 6,200 RPM, leading to a significant reduction in oil flow—nearly 1 GPM lost by 7,000 RPM. This cavitation not only decreases flow but can also aerate the oil, causing dangerous drops in oil pressure and risking engine oil starvation. If you're pushing your LS or Vortec-powered engine past 6,200 RPM, upgrading your oil pump is critical for reliability and longevity.
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