ApplicationFor Big Block compatible for Chevy V8 BBC 396- 454 402 427 LifterSpecificationLifter Link Bars Included: YES Lifter Outside Diameter (in): 0.8425 in. Lifter Style: Hydraulic roller Link Bar: Vertical Quantity: Sold as a set of 8 pairs as shownFeature* 100% brand new * 2 Yars Warranty for any manufacturing defect. * High performance aftermarket products made in our own lifters factory with more than 10 years experience * A fast and affordable way to easily upgrade your car\'s appearance performance * CNC Machined for Maximum Accuracy * Forged, Heat Treated Chrome Alloy Steel Body for High Strength * Precision Machined and Heat Treated Internal ComponentsNotes* Retro-fit for non-roller blocks. * No instruction included; professional installation is suggested.