What is the advantage of a roller rocker arm?

Roller rocker arms reduce friction in the valvetrain compared to standard rocker arms. This can lead to slightly improved performance and smoother operation.

What size valve springs can this rocker arm accommodate?

The full body design of this Edelbrock rocker arm can accommodate valve springs up to 1.65 inches in diameter.

Does this rocker arm come with all the necessary hardware for installation?

Yes, this individual rocker arm includes thick-walled adjusting nuts and 4140 steel poly locks for installation.

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Specifications

Brand: Edelbrock
Part #: 77771
UPC: 85347777716

Edelbrock Rocker Arms Roller SBC 3/8In 1 5 1 Ratio Individual

Name: Edelbrock Rocker Arms Roller SBC 3/8In 1 5 1 Ratio Individual
Brand: Edelbrock
SKU: edelbrock-edelbrock-rocker-arms-roller-sbc-3-8in-1-5-1-ratio-individual-t14-128143
Price: 55.95 USD
Availability: BackOrder

$55.95

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Edelbrock Roller Rocker Arms for Small Block Chevy with 3/8" studs. Lightweight aluminum construction for improved performance.

Key Features

Fits Small Block Chevy engines with 3/8" studs.
1.5:1 ratio increases valve lift.
Constructed from lightweight 7129 grade aluminum.
CNC machined and micro-polished for durability.
Features a Torrington needle bearing fulcrum and roller tip for smooth operation.
Full body design accommodates springs up to 1.65" diameter.

This rocker arm is designed for Small Block Chevy Gen I engines with displacements ranging from 262 (4.3L) to 400 (6.6L).

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're rebuilding the top end of your Small Block Chevy and need to replace a single rocker arm, this Edelbrock roller rocker is a solid option. It's designed specifically for engines using 3/8" studs and features a 1.5:1 ratio, which helps increase valve lift without changing the camshaft.

This rocker arm is made in the USA from lightweight 7129 grade aluminum, then CNC machined and micro-polished for a durable finish. The trunnion race, roller pin, and roller tip are centerless ground for smooth operation, and it uses a Torrington needle bearing fulcrum for reduced friction. The full body design can accommodate springs up to 1.65" in diameter, and it comes with thick-walled adjusting nuts and 4140 steel poly locks.