Reduce engine weight with durable, lightweight extruded aluminum rockers. Choose from cast iron and stamped steel rocker arms for budget-friendly performance. Chrome moly steel hardened and ground roller tips of generous diameter (positively retained by internal circlip) preventing abrasion of valve tips and guides commonly seen with non-roller tip rockers. Shop a huge selection of stud-, shaft-, and pedestal-mount rockers, as well as overhead cam followers, from COMP Cams, Jesel, Crane Cams, Harland Sharp, and many more.High ratios allow for additional lift on stock and aftermarket camshafts. Various ratios available,catering for every camshaft grind.Proven bolt-on shaft mount design that mounts both inlet/exhaust to common shaft,effectively increasing footprint and clamp load twofold without any further cylinder head modification.Extruded from aircraft grade aluminium,perfect for dissipating excess top-end heat.Single shaft bolt-on also available for cantered valve cylinder heads.Intricately balanced CNC billet arms ensuring vital valvetrain stability - focusing attention on the harmony of the entire engine.Oversize full-complement caged bearings designed for oscillating (rocking) loads,paired with oversize precision ground trunnions to reduce friction.Wide body arms for greater strength and resistance to deflection,extruded from aircraft grade aluminium for the highest RPM potential. Built to withstand 900lbs* max open spring pressure.Proven bolt-on shaft design featuring heavy duty 7/16”and 10mm hardware for stability and durability well beyond the chequered flag. Our wide range of true ratios allows you to achieve high lift without relying solely on your camshaft…a trend many engine builders and racers alike are adopting to relieve the inertia on lifters and pushrods generated by aggressive and often violent ramp rates required to make big lift. Aluminium Roller Rockers 1.6 Ratio 3/8 Stud Ford Small Block. Manufactured and assembled in Australia using the highest quality materials and componentry sourced locally and from the USA. All Products Roller Rockers (56 products). No other rocker system compares with Yella Terra Platinum race series. We feature Yella Terra Platinum Twin Shaft Rocker Arms at low everyday prices.Designed for strength,built to race. The Yella Terra Platinum Twin Shaft Rocker Arms are for small block and big block engines. All Platinum rockers feature a heavy duty 7/16" mountings for unsurpassed rocker stability. Receive 10 off your first order Minimum 80 order value required. 1.52 Ratio Rocker Arm 88+ For Chevrolet SBC w/ 3/8 in. The Yella Terra Platinum Race rockers are designed for the most severe race applications and have the feature of wide body arms for even greater strength and resistance to deflection. Yella Terra For Chevrolet V8 Small Block Street Terra 3/8 Stud 1.5 Ratio Roller Rockers - Yella Terra Skip to main content. standard vn heads with retainers screw in studs roller rockers good pushrods. Racers use Yella Terra Rockers because they work well and are reliable. Yella Terra Alloy head to suit the Holden Blue, Black and Red, 179, 186. Yella Terra Rockers are made in Australia to high quality design standards to meet a demanding market place. Yella Terra Rockers have proven themselves over the years in use, a high quality product doing a tough job and making it look easy. Yella Terra Platinum race rockers are for the most severe race applications. Yella Terra products are hard core, suited to racers, motor heads and enthusiasts who want to nail it off the line, and marine junkies who like to wind it out on the water, and know that the parts they have chosen will do the job. Pit Stop USA is The Online Motorsports Superstore! Yella Terra has been making hi-performance products that have been winning championships, lowering ETs, increasing MPHs and burning up tarmacs for more than 45 years.