Don’t leave power on the table At GPI, we put hours of R&D into perfecting our Gen 5 LT CNC program for an end result of 320cc Intake Port Volume and 116cc Exhaust Port Volume. What does that mean for your build? ⬇️ -Improved cylinder fill in the lower RPM range for stronger torque where you need it most -Substantial airflow increases up top to keep pulling harder at higher RPMs -Over 30 HP gains in our testing while delivering better torque below the curve 3 week turnaround time, from arrival a
Don’t leave power on the table At GPI, we put hours of R&D into perf…
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GPI L83 (5.3) Custom Hi Ram Heads and Cam Package! 😍 | Gwatney Performance Innovation
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GPI L83 (5.3) Custom Hi Ram Heads and Cam Package! 😍 | Gwatney Perf…
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Behind the scenes peek at GPI, where our in-house CNC machines are putting in work—cutting, shaping, and perfecting our L83 cylinder heads to exact spec🤘 🛠️ Every pass matters. These aren’t cookie-cutter parts—we machine our heads with tight tolerances, consistent flow gains, and proven performance gains for street and strip use. 🔍 Why our CNC-ported L83 heads hit different: ✅ Increased airflow for LS/LT platforms ✅ Optimized combustion efficiency ✅ Designed for boosted or naturally aspirated
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Behind the scenes peek at GPI, where our in-house CNC machine…
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3.3K views · 73 reactions | Another nice truck build! GPI Stage 3 L83 high lift cam kit. L86 intake setup, E85, headers, and a killer converter we have been having Circle D Specialties do for us! https://gwatneyperformance.com/product/gpi-l83-high-lift-cam-install-package-2014-5-3l-direct-injected-gm-truck/ https://gwatneyperformance.com/product/circle-d-6l8090-pro-series-single-disk/ | Gwatney Performance Innovation | Facebook
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3.3K views · 73 reactions | Another nice truck build! GPI Stage 3 L83 h…
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640 reactions · 17 comments | Your factory heads are leaving power on...
640 reactions · 17 comments | Your factory heads are leaving power o…
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We’re working on this L83 engine with multiple issues — here’s how to spot where it’s burning oil and prevent further damage! 🏎️ #autoshop #autorepair #carrepair #enginebuild | Davesautocenter Tech
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