Elgin
Elgin SBC Nitro Rocker Arm Kit 1.5 Ratio 7/16 Stud - RK1840NS
Elgin SBC Nitro Rocker Arm Kit 1.5 Ratio 7/16 Stud - RK1840NS
Regular price
$292.99 USD
Regular price
Sale price
$292.99 USD
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- Tracking emailed when it ships
- Free fitment check before you order
SBC Nitro Rocker Arm Kit 1.5 Ratio 7/16 Stud from Elgin. The part number and specifications are listed below. Higher-ratio rockers add valve lift without changing the cam.
Quick facts
- Brand: Elgin
- Part type: Rocker arm
- Part number: RK1840NS
Specifications
- Weight: 4.35 lbs
Tip: Check rocker geometry and adjust valve lash or preload after installation.

Elgin rocker arms: what to know
Worn rocker tips or pivots cause noise and poor valve control.
Fitment notes
- Specs, lead time and warranty come from Elgin and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentWhat else to plan for
- Pushrods. Rocker changes can change the pushrod length you need.
- Valve cover gasket. The cover comes off for this job.
More for your car: Rocker Arms · All Rocker Arms · Engine
Questions about rocker arms
Will this fit my car?
Check the title and details above for the vehicles and part number it is listed for. If you are not sure, contact us with your year, make, model, engine and trim and we will confirm fitment before you order.
Do I need to adjust valves after new rockers?
Yes on most engines with adjustable valvetrain.
Where do specs and warranty details come from?
From Elgin. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.
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