Moderately aggressive idle lope, minor to no loss in . Minimal overlap to maintain boost levels. 800+rwhp capable and stable well over 7000+rpm. This is the grind we use in our Level IV ZR1 SuperCar Package, and our Level V LSA packages. Quality dual valve springs with proper spring rate shimming are required.
Moderately aggressive idle lope, minor to no loss of drivability . Minimal overlap to maintain boost levels. 800+rwhp capable and stable well over 7000+rpm. This is the grind we use in our Level IV ZR1 SuperCar Package, and our Level V LSA packages. Quality dual valve springs with proper spring rate shimming are required.
Speed Inc SI9 Custom Cam
228-242 @.050
.604" lift/.622" lift
Our cams are custom ground for us by Comp Cams. 3-bolt core is standard, but available in single bolt for newer GenIV engines. We also offer a 3 bolt cam conversion kit for those with an original single bolt LS3 who want to upgrade to the stronger 3 bolt design.
SKU | SI9 |
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Manufacturer | Speed Inc |
Application Guide | Designed for LSA and LS9 applications, but can be used in all GenII and GenIV powered GM Vehicles |