Atomic High Rev Hydraulic Lifters | ‘Anti Pump-Up’ SOHC Having rebuilt well over 500

Having rebuilt well over 500 Barra engines since 2004 we're not mucking around

and Viton balancer seal (306046)

The Atomic Big Ears Sump Upgrade boosts oil capacity and improves control without compromising ground clearance — making it the perfect solution for serious street

Failure to follow the included instructions can lead to severe engine damage

and premature wear

Atomic High Rev Hydraulic Lifters | ‘Anti Pump-Up’ SOHC Having rebuilt well over 500Atomic "Anti Pump" High Rev Lifters High RPM Stability Double Relief Rate Technology The LIMIT OF Standard Lifters Standard hydraulic lifters are designed for smooth, gentle operation. When you introduce aggressive camshafts, harsh rev limiters (we know you love it), or high RPM, the valvetrain movement becomes sudden and violent. A standard lifter cannot discharge oil fast enough to keep up with these shocks. Instead, it "pumps up," holding the valve