


COMP Cams Rocker Arms GM LS3 1.8 3/8 Ultra
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
COMP Cams Rocker Arms GM LS3 1.8 3/8 UltraNew LS Specific Ultra Pro Magnum Rocker Arms From COMP Cams Increase Ratio And Stiffness Over Stock Rockers, While Also Increasing Lift without The Need To Swap Cams. As LS engines continue to grow in popularity, COMP Cams has expanded its line of Rocker arms to build components specific to LS Applications. LS3 L99 L76 Rectangle Port Head LS ApplicationsSet Of 16 Stud Mount Rockers Includes Poly Locks Requires 3 8" Studs & Guide Plates GM LS Flat 5
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Your COMP Cams Rocker Arms GM LS3 1.8 3/8 Ultra orders ship within 1-2 business days.
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- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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★★★★★ 5
Great product !!!
Size: 8.8" x 9.3" x 1.2"
The product was in great shape when delivered. Even though the package was thin as it is the delivery was made with card and all was well with product. The instructions were good to use and change in my car. Also it showed the make of vehicle so I won’t be confused at all. Overall it was a great buy
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Fits my Accord perfectly!
Size: 8.8" x 9.3" x 1.2"
Fits my 2008 Accord perfectly and feels just as sturdy as the OEM I used before, which cost nearly twice as much. Plus, it includes activated carbon, something the OEM didn’t have.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Easy to do it yourself and save!
Size: 8.8" x 9.3" x 1.2"
One place wanted $85 to replace this! Another wanted $50! I ordered this for $10, watched a YouTube video and did it myself! Super easy!
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Buy it, worth it.
Size: 8.8" x 9.3" x 1.2"
Good quality product. Easy to use and install. Worth the money.
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Reviewed in the United States on January 20, 2026
★★★★★ 5
Price/Quality
Packaged very well, perfect fit and the quality looks great. Well worth the price.
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