Pay in 4 interest-free payments of $50.00 Learn more
Ships within 48 hours · Estimated delivery Sep 28 - Oct 3
Quality Assurance: You will receive a comprehensive build report verifying your block's ultrasonic thickness and the exact clearances used during assembly
HD Chain & Billet Sprocket
Depending on the Stage you select
Standard & -8AN: Available for street applications or existing hose setups
12mm Tool Steel Head Studs Drop-in replacement for factory head bolts
Atomic Barra Valve Springs Valve spring grade:Stage 1 | 80-90lbs | 20psi max Quality Assurance: You will receiveAtomic Matched Valve Springs Ovate Wire Technology* Precision Matched Sets WHY UPGRADE TO ATOMIC SPRINGS!? Factory valve springs are designed for standard RPM and low boost. As you increase power, valve float becomes the enemy. But simply installing "stiffer" springs isn't enoughif those springs vary in pressure, they create uneven harmonics that can destroy your engine. DID YOU KNOW? Unequal spring pressure kills timing systems. Just like mismatched