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Your cart is empty.Australia-based Yella Terra specializes in roller rockers and related valvetrain components for muscle car performance. They also offer a number of other aftermarket performance parts, including cylinder heads, superchargers, billet flywheels, and more.
M in Colorado
Reviewed in the United States on May 15, 2015
These rockers "rock"! They are very well built and Yella Terra has evolved the design of this particular model to address product failures they have had in the past. Specifically, they beefed up the thickness of the material surrounding the shaft to reduce the likelihood of breakage failure between the shaft and the roller tip. Also, they strengthened the material that the push rod makes contact as that had been an issue in the past. I have over 1,000 miles on my motor after this install and think that the roller tips help to reduce valve train noise and friction and have had people comment that my motor does not have the typical "sewing machine" sound that other LS2 motors have after a cam and springs upgrade. My 2005 Corvette dynoed 465rwhp in the thin air of Denver and I've done one HPDE track day at High Plains Raceway and an autocross event at Pikes Peak International Raceway with no issues. Overall all, I'm happy with their performance, design, and reliability thus far and would not hesitate to use them again. The price of these on Amazon blew everyone else away and I had a couple of other vendors who do price matches, decline to match the price I paid.
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