GPI Low Lift LS Camshaft - LLT2 with 8620 Hardened Core Upgrade (4.8L / 5.3L / 6.0L / 6.2L) - LLT2-8620
High-Output Low Lift Truck Cam with 8620 Hardened Core Durability
The GPI LLT2 Low Lift Camshaft with 8620 Hardened Core Upgrade is built for LS truck owners who want maximum horsepower gains while still retaining usable low-end torque and dependable drivability. Designed for 4.8L, 5.3L, 6.0L, and 6.2L LS engines, the LLT2 delivers a stable idle, excellent torque from 2,250 RPM and up, and smooth valvetrain operation for long-term reliability.
The 8620 hardening process significantly improves lobe wear resistance while maintaining the alloy's ductility. The result is a camshaft with a stronger, more durable wear surface - ideal for trucks that see heavy use, towing, long-distance driving, or aggressive performance.
A torque converter upgrade is not required, although it is recommended for 5.3L trucks to maximize the performance envelope. Exhaust upgrades are also not required.
Low Lift Camshaft Series Overview
GPI offers five 3-bolt low lift camshaft options for LS truck platforms, covering everything from mild daily-driven improvements to higher-output performance applications. These profiles are engineered to meet the diverse needs of Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche, and LS-swapped hot rod owners.
Low Lift Truck Series: LLT1 & LLT2
The LLT1 and LLT2 camshafts are optimized for trucks that are used as trucks. Designed for towing, hauling, commuting, and street performance, these cams provide:
- Stable, near-stock idle characteristics
- Strong low-RPM torque for real-world drivability
- Smooth, quiet valvetrain operation
- No mandatory torque converter upgrade
- No exhaust modifications needed
- Improved horsepower and torque across the entire powerband
The LLT2 is the more performance-focused option, offering maximum power potential while preserving essential low-end torque.
LLT2 8620 Camshaft Specifications
- Duration (Int/Exh): 21x / 22x
- Valve Lift (Int/Exh): .54x / .54x
- LSA: 112
- ICL: +4
- Torque Range: 2,250 RPM and up
- Core Material: 8620 Hardened Steel
Performance Highlights
- Stronger, more durable 8620 hardened core for long-term reliability
- Maximum horsepower potential without sacrificing usable low-end power
- Stable idle suitable for daily-driven and work-oriented trucks
- No converter required; converter recommended for 5.3L trucks
- No exhaust upgrade needed
- Smooth, quiet, and reliable valvetrain behavior
- Ideal for Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche, and LS swaps
Why Choose the LLT2 8620?
If you want strong top-end gains while keeping your truck practical, the LLT2 8620 is the perfect blend of performance and drivability. Its hardened core ensures superior wear resistance, making it ideal for heavy-duty applications, high mileage trucks, and performance-minded builds.
Quick Specs
- Part Number: LLT2-8620
- Duration: 21x / 22x
- Lift: .54x / .54x
- LSA: 112
- ICL: +4
- Converter Required: No (recommended for 5.3L)
- Exhaust Required: No
Fitment
Chevrolet Silverado / GMC Sierra
- 4.8L / 5.3L / 6.0L / 6.2L LS Engines (All Applicable Years)
Chevrolet Tahoe / Suburban
- 4.8L / 5.3L / 6.0L LS Engines (All Applicable Years)
GMC Yukon / Yukon XL
- 4.8L / 5.3L / 6.0L LS Engines (All Applicable Years)
Chevrolet Avalanche
- 5.3L / 6.0L LS Engines (All Applicable Years)
LS Hot Rod & Street Rod Swaps
- All LS-based 4.8L / 5.3L / 6.0L / 6.2L swap applications
FAQs
How does the LLT2 8620 differ from the standard LLT2 camshaft?
The 8620 version is built with a hardened core for superior strength and wear resistance, making it ideal for trucks that see heavy use or high mileage.
Do I need to upgrade the torque converter?
Not required. However, 5.3L trucks benefit noticeably from a converter upgrade to unlock the full performance of the LLT2 profile.
Why Buy from Beefcake Racing?
Beefcake Racing provides expert camshaft support, competitive pricing, and fast shipping on all GPI products. Need help choosing the right cam for your build?
Call 1-855-827-7223 or email sales@beefcakeracing.com.
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