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Mast Motorsports LS3 Aluminum Shaft Rocker Arms

Mast Motorsports LS3 Aluminum Shaft Rocker Arms


Fits Mast Motorsports 11 Degree, 6 bolt LS3 castings

4.0 or larger bore

1.72 Ratio


Elite LS Aluminum Pro Series Shaft Rocker Arms

Standard Features


Shaft Needle Bearings
Full complement needle bearing assembly for smooth, precise operation.


Nose Roller
.535” diameter Alloy Steel Nose Roller Wheel


Centerless Ground Shafts
Heat treated and precision ground 8620 Alloy Steel shaft provides years of durable service.


Billet Aluminum Rocker Body
Machined from 7000 aluminum billet, our shaft rockers are designed to withstand race or extreme street applications. The tensile strength of our 7000 series aluminum far exceeds the industry standard 2024. 7000 series aluminum provides excellent tensile and yield strength for maximum durability. Designed to handle today’s modern cam profiles and spring pressures.


Billet Steel Stand
Provides a stable and rigid mounting surface for shaft rocker assembly.


Alloy Steel Lash Adjusters
CNC machined; heat treated alloy steel lash adjusters


Adjusting Nut

ARP 12pt


Pushrod Length varies due to lifter used. Most oem style lifters use 8.100-8.200.

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