Engines and Components› Camshafts and Valvetrain

Summit Racing

1.6 Ratio Roller Rocker Arms

$364.99

SKU: SUM-G6920B

Special Order
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Summit Racing SUM-G6920B is a set of 16 roller rocker arms designed for use with 3/8 in. studs. These arms are CNC-machined from extruded aluminum and heat-treated for durability. Made in the USA, they are sold as a set.

The rocker arms feature a 1.6 ratio and are self-aligning. They are constructed from high-strength extruded aluminum that has been heat-treated for enhanced reliability.
Show original supplier description
The Summit Racing SUM-G6920B is a set of 16 full roller rocker arms, engineered for performance and durability in Chevrolet Small Block engines. These rocker arms are CNC-machined from high-strength extruded aluminum, ensuring a robust yet lightweight component. The heat-treated construction further enhances their reliability, making them a dependable choice for engine builds. Designed with a 1.6 ratio and a 3/8 inch stud size, these rocker arms are self-aligning, simplifying installation and ensuring proper valve train geometry. They are proudly made in the USA, reflecting a commitment to quality manufacturing. Each set includes all 16 necessary rocker arms for a complete engine application. These aluminum roller rocker arms are a direct fit for applications requiring a 3/8 in. stud size. The extruded aluminum construction contributes to reduced valvetrain mass compared to heavier steel components, potentially allowing for higher engine speeds and improved performance.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSummit Racing
Part NumberSUM-G6920B
CategoryEngines and Components
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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