GPI – LS3 Cam

Code: gpi-ls3-cam
Gwatney Performance Innovation

Please note: These are high lift 3 bolt cams. Dual .660 valve springs, hardened pushrods, and 3 bolt conversion is required for install. Refer to Cam Install Package above for the required components.


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Not legal for use in California or other states with similar laws / regulations.

These cams are our most popular product, and for good reason – they are pound for pound – the best cams on the market for your LS3 / LS2 / LS1. These cams have become the benchmark for Camaro’s and Corvette’s all over the country. Our GPI Camshaft and Head packages have been dominating race tracks, and taking Camaro’s and Corvette’s deep into the 10 second range for customers all over the country. Although these camshafts were designed with naturally aspirated motors in mind – because centrifugal blowers maintain a very similar, linear power curve as NA – these cams work beautifully with centrifugal blowers. Great option to keep in mind if you are naturally aspirated now – but are later planning on adding boost. We have 4 different iterations of this very popular camshaft – from mild performance increase with nearly stock manners, to all out N/A race applications.


In./Ex. Duration224/237In./Ex. Valve Lift.646/.637LSA112ICL+4

Works well with a stock torque converter, offers stable idle, excellent low end torque, and smooth lobe design for quiet valve train operation and longevity. We designed this camshaft for use in cars with minimal modifications. Idles stable around 675 RPM, and is very strong off idle to 6600 RPM.

In./Ex. Duration228/240In./Ex. Valve Lift.646/.637LSA112ICL+4

Tailored for the street / strip individual that runs a 3000+ RPM converter. It rivals the torque output of the SS1 but packs on about 10-15 additional horsepower up top. Strong to 6700 RPM. This cam requires 3200+ RPM converter and increased rear end gear ratios are recommended.

In./Ex. Duration233/253In./Ex. Valve Lift.646/.637LSA112ICL+4

This is our most popular street / race cam, and for good reason. This is the perfect cam for the hardcore street / strip enthusiast, and makes more torque and horsepower than our SS1 and SS2 VVT cams. Very strong to 6900 RPM. Track tested, developed,and proven! This cam requires 3600+ RPM Converter, and loves 3.91 gearing.

In./Ex. Duration

236/252In./Ex. Valve Lift.646/.637LSA



All out performance application. Very street able, requires 4000 plus converter, prefers 3.91 to 4.10 gearing and requires no flycutting. Track tested and developed 10 second cam with heads and supporting mods. Strong to 7200 rpm. Specifically designed to clear on stock heads and gaskets with no milling.

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