Product Description
Harland Sharp LS1 & LS6 Non-Adjustable Roller Rocker Arms 1.7:1 Ratio
Fits 1997-2013 LS-based 4.8L, 5.3L, 5.7L, and 1999-2006 6.0L engines. Compatible with LS1, LS2, LS6, LR4, L20, LY2, LM7, LC9, LM4, LS4, L33, L59, LH6, LY5, LMG, LMF, LQ4, LQ9
Harland Sharp non-adjustable rocker arms are designed for GM Gen III/IV LS engines with cathedral port heads, providing precise valvetrain control and improved durability for both street and performance applications. Featuring a 1.7:1 ratio, these pedestal mount rocker arms maintain the factory LS ratio, and lifter preload is built right into the rockers so no need for shims or different pushrods. The intake and exhaust rockers are tied together with a steel shaft to add stability and keep the rockers aligned on the valves.
Manufactured in the USA from high-strength aluminum, each rocker arm is CNC-machined for accuracy and equipped with a needle-bearing fulcrum to reduce friction and wear. These roller rockers are an excellent choice for camshaft upgrades or performance-oriented builds.
Features:
- Designed for GM Gen III/IV LS engines with Cathedral Port Cylinder Heads
- Paired rocker arms connected by a centered tie-bar to maintain proper alignment
- 1.7:1 rocker arm ratio
- Includes all 8mm grade 8 socket head cap screws and pedestals
- Roller tip design to reduce valve stem wear
- CNC-machined high-strength aluminum construction
- Needle-bearing fulcrum for reduced friction and wear
- Improves valve train stability and durability
- Made in the USA
Special Notes:
Harland Sharp recommends soaking the rocker arms overnight in a zinc-based oil prior to installation to ensure proper initial lubrication.
