Roller Rockers - Yella Terra (2024)

Street Terra

Reduced cost, same legendary performance

Yella Terra Street Terra rockers are there to give you the same legendary performance of premium race Yella Terra components at a fraction of the cost. Compared to factory, the Yella Terra Street line up dramatically improves power and performance by giving you the race proven engineering and design of the PerfectTune Yella Terra team for fractions of what you would pay otherwise.

Eliminate side thrust, reduce wear

The true roller tip design behind Yella Terra Street Rockers reduces valve side thrust and gives you more life from your valve stems, guides and seats. That means less maintenance and more track time.

Smoother, cooler, quieter operation, improve cylinder head life

Keep speed and performance up while keeping temperatures and noise down. Yella Terra Street optimizes the valve train while keeping things cool and quite. That gives you more performance, easier maintenance, and a longer cylinder head life.

Higher rev potential

Yella Terra Street Rockers set the stage for higher revs with their precision wheel tip rockers and superior trunion mounts and captive bearings. You get the confidence you need to take your engine into the higher rev ranges knowing that the Yella Terra Street rockers are there keeping your valve train hopping while running smoother, quieter, and cooler.

Easy installation, no cylinder head modification and all hardware supplied

Yella Terra Street Roller Rockers are designed to easily mount to the existing head with no modifications. All hardware is supplied, and generally, installation takes an hour and there are no special skills required. You get the power and performance of Yella Terra easily and hassle free.

Torrington needle bearings mated to full shaft and trunions

Yella Terra Street uses a fully captured, oversized Torrington needle bearings mounted on an 11/16″ shaft which is much larger than factory, it carries the load better. And the nose-wheels are the lightest in the industry which keeps the weight over the valve limited. You can run less spring pressure yet keep the same valve control. The design incorporates high density aluminum arms and true roller-tips giving you smooth, quite, and cooler operation while eliminating side thrust and wear and extending the life of your components.

Nominal ratios from 1.5 to 1.8 with adjustable and non adjustable versions

Increase lift easily with optimally designed ratios. Adjustable and non adjustable designs give you maximum flexibility in your build.

Superior quality heat treated, hardened, and ground shafts and trunions

Yella Terra Street Rockers are manufactured under stringent guidelines and quality control using the best quality materials. PerfectTune, Yella Terra’s manufacturing arms, has decades of experience in the manufacturing of racing components. That experience carries through in every component of Yella Terra Street rockers.

Install in about an hour, no special skills needed

Yella Terra has made a point of making performance easy with the Yella Terra Street series of rockers. All hardware is supplied, and stud rockers come with locking nuts and set screws. Every component of the Yella Terra Street rocker system has full factory support for replacement parts.

Light weight and Narrow Body options

Yella Terra and Perfectune have combined even more advanced Roller Rocker combinations in their Street lineup to include ultra-light (blue tab) and narrow body (yellow tab) configurations. The commitment to performance is carried to the next level in these components, offering you even more options for strengthening and increasing performance in your valve train.

Between factory and Yella Terra, it’s not even a fair comparison.