Morel 5290 Hydraulic Roller Lifters for LS Engines
The Morel 5290 Hydraulic Roller Lifters are a premium drop-in upgrade for LS-based engines ranging from 4.8L to 7.0L. Built for high-performance street and mild race applications, these lifters are designed to handle increased spring pressures and higher RPM — making them the go-to choice for reliability and long-term valvetrain performance.
Morel Hydraulic Pre-load Settings:
- Cast Iron block and Cast Iron Head = .020" - .025"
- Cast Iron block and Aluminum Head = .030" - .035"
- Aluminum block and Aluminum Head = .045" - .050"
Key Specifications:
- Engine Compatibility: Gen III/IV LS engines (4.8L – 7.0L)
- Lifter Body Diameter: 0.842"
- Roller Wheel Diameter: 0.700"
- Plunger Travel: 0.120"
- RPM Range: Rated for up to 6,500 RPM
- Spring Pressure Compatibility: 100–180 lbs (seat) / 280–380 lbs (open)
- Tie Bar Design: Vertical link bar for rotational stability
- Construction: Cold-formed steel body with needle roller bearings
- Pushrod Alignment: On-center (stock-style geometry)
- Lifter to Ball Seat Distance: 2.685"
Why Choose Morel 5290 Lifters?
- Stronger Than Stock: Ideal for performance camshafts and aftermarket spring pressures
- RPM Stability: Designed to handle up to 6,500 RPM without lifter float
- Precision Alignment: Vertical tie bar maintains consistent lifter orientation
- Drop-In Compatibility: Fits standard LS pushrod and bore configuration
If you're upgrading to a performance camshaft or simply want a more durable lifter for your LS build, the Morel 5290 Hydraulic Roller Lifters offer an outstanding balance of reliability, high-RPM performance, and easy installation. Trusted by builders for everything from street cars to mild strip setups.
