gpi lt1 (Gen 5) camshaft
These cams are our most popular product, and for good reason – they are pound for pound – the best cam on the market for your LT1, LT4, L83, or L86 with a positive displacement blower. These cams have become the benchmark for 6th Gen Camaro’s / C7 Corvette’s / GM Trucks with Positive Displacement Blowers.
These camshafts were designed with positive displacement blowers in mind – factory/ported LT4 blowers, Whipple, and so forth. With centrifugal blowers, we recommend using our standard SS1 LT through Track Attack camshafts, as they maintain a very similar, linear power curve as NA.
We have 3 different iterations of this very popular cam (and the option to do a custom spec cam) – from mild performance increase with nearly stock manners, to all out N/A race applications.
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Works well with the stock torque converter, offers stable idle, excellent low end torque, and smooth lobe design for quiet valve train operation and longevity. We designed this cam for use in cars with minimal modifications. Idles stable around 725 RPM, and is very strong off idle to 6400 RPM. Requires 0* phaser limiter.
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Tailored for the street / strip individual that runs a 2500+ RPM converter. It rivals the torque output of the LT PD1 but packs on about 10-15 additional horsepower up top. Strong to 6700 RPM. Can run a factory converter but an upgraded converter is recommended. Requires 0* phaser limiter.
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This is the perfect cam for the hardcore street / strip enthusiast, and makes more torque and horsepower than our LT PD1 and LT PD2 cams. Very strong to 7000 RPM. Track tested, developed, and proven! Requires a 3000+ RPM Converter, and 0* phaser limiter.