GPI LT1 / LT4 / L86 / L97 / L83 / L84 Blower Cam - L83 PD2 (2016 - 2024 Camaro | 2014 - 2019 C7 Corvette) - L83PD2
More Power, More RPM - The Aggressive Positive Displacement Blower Cam for 5.3L L83 Engines
The GPI L83 PD2 Blower Cam is the next step up from the PD1, delivering stronger high-RPM horsepower, sharper mid-range acceleration, and the airflow needed for more serious positive displacement supercharger builds. Designed for the 5.3L L83 platform, this cam is ideal for drivers who want harder top-end pull without sacrificing the torque-rich drivability that makes the L83 so responsive under boost.
Proven on 6th Gen Camaros, C7 Corvettes, and especially GM trucks equipped with PD blowers such as Whipple, Magnuson, Edelbrock, or LT4 superchargers, the L83 PD2 offers a significant performance bump for street/strip use.
Dedicated L83 PD2 Camshaft Specs
- Duration (Int/Exh): 216 / 232
- Valve Lift (Int/Exh): .630" / .612"
- LSA: 117
- ICL: +4
- RPM Range: Idle - 6700 RPM
- Limiter Requirement: 0° phaser limiter
Built for Street/Strip Performance
The L83 PD2 is tailored for enthusiasts who need more airflow than the PD1 can provide. It rivals PD1 low-end torque but adds 10 - 15 HP up top, making it ideal for trucks or performance builds that want harder acceleration and more RPM capability.
Because of its more aggressive profile, the PD2 requires a 3000+ RPM torque converter to perform at its best.
Performance Highlights
- Stronger top-end than the L83 PD1 (10 - 15 HP gain)
- Aggressive blower-optimized duration and timing
- Excellent mid-range response and torque retention
- Strong power to 6700 RPM with proper valvetrain
- Designed specifically for PD blower systems
- Requires a 3000+ stall converter
- Requires 0° phaser limiter
Comparison Cam Specs for Reference
Common PD blower cam specs for the 6.2L LT platforms (LT1/LT4/L86):
- LT1/LT4/L86 (6.2L): 226 / 250 - .639"/.639" - 116+3
Quick Specs
- Part Number: L83PD2
- Engine Platform: 5.3L L83
- Blower Compatibility: Whipple, Magnuson, Edelbrock, LT4 PD blowers
- Idle Quality: Stable with correct converter
- Converter Requirement: 3000+ RPM
- RPM Powerband: Idle to 6700 RPM
- Limiter Requirement: 0° phaser limiter
Fitment
Chevrolet Camaro (2016 - 2024) - L83 Swap Applications
- 2016 Chevrolet Camaro (L83 PD-blower swap)
- 2017 Chevrolet Camaro (L83 PD-blower swap)
- 2018 Chevrolet Camaro (L83 PD-blower swap)
- 2019 Chevrolet Camaro (L83 PD-blower swap)
- 2020 Chevrolet Camaro (L83 PD-blower swap)
- 2021 Chevrolet Camaro (L83 PD-blower swap)
- 2022 Chevrolet Camaro (L83 PD-blower swap)
- 2023 Chevrolet Camaro (L83 PD-blower swap)
- 2024 Chevrolet Camaro (L83 PD-blower swap)
Chevrolet Corvette C7 (2014 - 2019) - L83 Swap Applications
- 2014 Chevrolet Corvette (L83 PD-blower swap)
- 2015 Chevrolet Corvette (L83 PD-blower swap)
- 2016 Chevrolet Corvette (L83 PD-blower swap)
- 2017 Chevrolet Corvette (L83 PD-blower swap)
- 2018 Chevrolet Corvette (L83 PD-blower swap)
- 2019 Chevrolet Corvette (L83 PD-blower swap)
GM Trucks (5.3L L83 / 5.3L L84)
- Chevrolet Silverado (5.3L L83)
- GMC Sierra (5.3L L83)
- Chevrolet Silverado (5.3L L84)
- GMC Sierra (5.3L L84)
- All Gen V truck platforms running a PD blower
FAQs
How does the L83 PD2 compare to the PD1?
The PD2 offers similar low-end torque but adds significantly stronger top-end power - about 10 - 15 HP more - making it better suited for street/strip builds and heavier trucks with added airflow needs.
Does the L83 PD2 require a torque converter upgrade?
Yes. A 3000+ RPM converter is required to maximize drivability and performance with the PD2's more aggressive cam profile.
Why Buy from Beefcake Racing?
Beefcake Racing delivers expert LT/L83 camshaft guidance, competitive pricing, and fast shipping. Need help deciding between PD1, PD2, or PD3 for your blower setup?
Call 1-855-827-7223 or email sales@beefcakeracing.com.
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