YELLATERRA HOLDEN INLINE STREET TERRA 5/16" SHAFT [1.5 RATIO] ROCKERS (ST 2030)

Our vacuum die cast arm is designed and engineered for optimum strength without the costs associated with billet CNC machining. The Street Terra series utilises the extreme duty hardware from our premium Platinum race series - ensuring a lifetime of trouble free performance. Our easyfit (EF) kits are a cost effective alternative for factory stamped steel rocker arms, which can be installed within less than an hour without cylinder head removal and in most cases without machining.

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.

Popular amongst standard rebuilds where OEM equipment is worn and or scarce, as well as mild street applications.

Various ratios available, catering for every camshaft grind. High ratios allow for additional lift on stock and aftermarket camshafts.
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. Allows for smoother, quieter operation. Maintains lash and reduces necessary and tedious engine maintenance.
Tech Spec

PART NO ST 2030
BRAND STREET TERRA
APPLICATION FACTORY REPLACEMENT/STREET
MAX OPEN SPRING PRESSURE
450lbs
MAKE HOLDEN
ENGINE HOLDEN 173, 202
MOUNTING STYLE SHAFT MOUNT
ROCKER ARM RATIO 1.5
STUD SIZE 5/16"
ADJUSTABLE/HYDRAULIC HYDRAULIC
ROCKER ARM STYLE FULL ROLLER
ROCKER MATERIAL ALUMINIUM
ROCKER ARM BODY STYLE VACUUM DIE-CAST
ROCKER ARM NUT STYLE CAP SCREW
MAX SPRING DIAMETER 1.437"
INLET OFFSET NO
QTY SET OF 12
NOTE EASY FIT