HOLDEN V8 1.65 Roller Rockers, 7/16" Shaft Mount, Pushrod Screw Adjustable, 304 308 5.0L 1.65, PLATINUM 2" capscrew bolts

YT6030, Yella Terra, Holden 304 5.0L V8, Adjustable, Shaft Roller Rockers. PLATINUM *

This set includes the standard height Capscew bolts (2") for Cast Iron Heads.

Suits the VN EFI heads with 7/16" modifications* and C.O.M.E. Racing Cylinder heads with no offset

YellaTerra Platinum Race Rockers - The ultimate performance shaft rockers for Aussie V8's 

*NOTE:

• if using a longer valve, you will need to use shims or a taller stand
• This set includes the standard length Capscew bolts (2") . 
• NOTE: If you have aluminum cylinder heads, we recommend the longer bolts (2 1/4") in part number YT6030A

Designed for strength, built to race. No other rocker system compares with Yella Terra Platinum race series. Manufactured and assembled in Australia using the highest quality materials and componentry sourced locally and from the USA.

Yella Terra have a 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. 

Proven bolt-on shaft design featuring heavy duty 7/16”  hardware for stability and durability well beyond the chequered flag.

Why Choose Platinum? 

• 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
• Oversize full-complement caged bearings designed for oscillating (rocking) loads, paired with oversize precision ground trunnions to reduce friction.
• Intricately balanced CNC billet arms ensuring vital valvetrain stability - focusing attention on the harmony of the entire engine.
• Single shaft bolt-on also available for cantered valve cylinder heads.
• Extruded from aircraft grade aluminium, perfect for dissipating excess top-end heat.
• 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.
• 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.

PART NO              YT 6030

MAKE    HOLDEN

MODEL COMMODORE

SERIES   VN-VT1

ENGINE 5.0L|5.7L EFI V8

Applications using "VN" heads

YEAR      03/89|06/99

PART TYPE           ROLLER ROCKERS

MOUNTING STYLE           SHAFT MOUNT

ROCKER ARM RATIO       1.65

STUD SIZE            7/16"

ADJUSTABLE      ADJUSTABLE

ROCKER ARM STYLE         FULL ROLLER

SHIMS INCLUDED             YES

ROCKER MATERIAL          ALUMINIUM

SELF-ALIGNING                   NO

ROCKER ARM BODY STYLE            WIDE BODY

ROCKER ARM NUT STYLE               CAPSCREW

MAX SPRING DIAMETER                1.550"

MAX OPEN SPRING PRESSURE    600lbs-1000lbs

INLET OFFSET     -

QTY        SET OF 16

BRAND PLATINUM

*NOTE     To machine for Platinum rockers, remove 0.300" from Rocker Pads, drill and tap for 7/16" UNC.

*NOTE: if using a longer valve, you will need to use shims or a taller stand and the longer Capscew bolts (2 1/4")

Total Performance is a Yella Terra Distributor