Introductions: Our hydraulic roller lifters are designed for use with standard factory alignment bars (on engines originally equipped with hydraulic roller lifters).These precision-valved heavy-duty lifters are a drop-in replacement for OEM applications, they have vertical alignment bars and are designed for engines that did not originally come with hydraulic rollers, such as small and big block Chevys, Fords and Mopars. they can also be used to replace OEM-type hydraulic rollers and guide bars. Welcome to choose performance auto parts. Feature: 100% brand new 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 Components Specification: Application: for Chevrolet small block 265 1955-1957 4.3L for Chevrolet small block 283 1957-1967 4.6L for Chevrolet small block 327 1962-1969 5.4L for Chevrolet small block 350 1967-2003 5.7L for Chevrolet small block 302 1967-1969 4.9L for Chevrolet small block 307 1968-1973 5.0L for Chevrolet small block 400 1970-1981 6.6L Lifter Link Bars Included: YES Lifter Outside Diameter (in): 0.8425 in. Lifter Style: Hydraulic roller Link Bar: Vertical Quantity: a set of 16pcs (8 Pair) Warranty: 2 Years Retro-fit for non-roller blocks. No instruction included; professional installation is suggested. Package Includes: a set of 16pcs (8 Pair) Roller Lifters Code:MGGRP Authority ID：MXR02FXSY Notice：California Prop 65 Warning Notice：California Prop 65 Warning

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