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In-Store Pickup Location

Chevrolet Performance LS Rocker Arms 12579617

Rocker Arm, Exhaust, 1.8 Ratio, Cast, Roller Fulcrum, Chevy, Small Block, LS7, Each

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Brand: Chevrolet Performance

Manufacturer's Part Number: 12579617

Part Type: Rocker Arms

Product Line: Chevrolet Performance LS Rocker Arms

Summit Racing Part Number: NAL-12579617

Rocker Arm Mounting Style: Pedestal

Self-Aligning: Yes

Rocker Arm Ratio: 1.8

Rocker Arm Style: Roller fulcrum

Shims Included: No

Rocker Arm Material: Cast iron

Rocker Arm Body Style: Narrow

Rocker Arm Fasteners Included: Yes

Rocker Arm Nut Style: Self-locking

Slot Style: Long

Rocker Arm Finish: Natural

Quantity: Sold individually.

Notes: Fits exhaust position only on LS7 style heads. Straight design. No offset.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

Get smooth valvetrain performance! Chevrolet Performance LS rocker arms install easily on your LS cylinder heads without any modifications. Add some additional horsepower and increase your rpm capability with a set of Chevrolet Performance LS rocker arms.

Warranty

Questions & Answers Ask a Product Question
Q:

Will this fit for a 5.3 cathedral port head? Instead of the factory 1.7 ratio, is it a strait across swap?

Asked by BENJAMIN on December 16, 2017

A:

Thank you for your question. The Chevrolet Performance 12579617 rocker arms will not fit your 5.3L cathedral port cylinder head. However, we do offer a Summit Racing part number G6981 in 1.8 ratio that will work great on your factory cylinder heads.

Summit RacingSummit Racing Answer - January 09, 2018

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Most Helpful Reviews Review This Product

1 Customer Reviews for Chevrolet Performance 12579617 - Chevrolet Performance LS Rocker Arms

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they do their job and they do it well

Summit RacingSummit Racing Verified Purchase

NAL-12579617
I bought these rocker arms for my 2003 5.3 LM7 as an upgrade from the stock 1.7:1 rocker arms for a little bit of extra lift. They brought my torque from 3 grand to about 1.5 grand. Was able to use the stock rocker rail and bolts, no machining/casting imperfections. Worth the money.

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Reviewer: from IL

Date: August 29, 2018

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Some parts are not legal for use in California or other states with similar laws / regulations

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