YELLATERRA SB FORD/CHEV V8 STREET TERRA 3/8" STUD [1.6 RATIO] ROCKERS (ST 2004)

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.

Vaccuum die cast arms built to withstand 450lbs* max open spring pressure
Oversize full-complement caged bearings designed for oscillating (rocking) loads, paired with oversize precision ground trunnions to reduce friction.
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 2004
BRAND STREET TERRA
APPLICATION FACTORY REPLACEMENT/STREET
MAX OPEN SPRING PRESSURE
450lbs
MAKE CHEVROLET
ENGINE SBC 265, 267, 283, 302, 305, 307, 327, 350, 400
MOUNTING STYLE STUD MOUNT
ROCKER ARM RATIO 1.6
STUD SIZE 3/8"
ADJUSTABLE/HYDRAULIC ADJUSTABLE (POSILOCK)
ROCKER ARM STYLE FULL ROLLER
ROCKER MATERIAL ALUMINIUM
ROCKER ARM BODY STYLE VACUUM DIE-CAST
ROCKER ARM NUT STYLE POSILOCK
MAX SPRING DIAMETER 1.437"
INLET OFFSET NO
QTY SET OF 16
NOTE EF