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Holden EFI/304 V8 Ultralite Pro 5/16" SHAFT [1.65 Ratio] Rockers (YT 6797)

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Price:
$836.00
SKU:
YT 6797
Weight:
5.00 KGS
Shipping:
$30.80 (Fixed shipping cost)
Quantity:



Product Description

Ultralite Pro

Yella Terra’s exclusive Ultralite Pro rocker arm, shaft and pedestal system offers 50% less nose weight than the factory rocker system, the result being greater RPM potential without compromising strength or durability. The perfect low-maintenance substitute for factory rocker arms which utilise problematic cage-less bearings, solid non-roller tips and heavy steel bodies.

Specifically Designed and Machined to suit VN Style 304 Heads, Our Latest Pro Street YT 6797 Rocker arms are the optimum low maintenance entry level CNC Machined Hydraulic Roller rocker for Street & Factory replacement applications. 

Yella Terra Ultralite Pro is ideal for high revving street applications when coupled with factory/lightweight aftermarket springs. Manufactured and assembled in Australia using the highest quality materials and componentry consistent with those found in our Platinum race series.

Why Choose Ultralite?

  • Built to withstand 480lbs* 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 lightweight arms ensuring vital valvetrain stability - focusing attention on the harmony of the entire engine. 50% less oscillating nose weight eliminates valve float in upper RPM range allowing for higher rev ceiling.
  • 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.
  • 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.

ITEM SPECIFICS

PART NO YT 6797
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 BOLT ON SHAFT TYPE
ROCKER ARM RATIO 1.65
STUD SIZE 5/16" 
ADJUSTABLE -
HYDRAULIC HYDRAULIC
ROCKER ARM STYLE FULL ROLLER
SHIMS INCLUDED YES
ROCKER MATERIAL ALUMINIUM
SELF-ALIGNING NO
   
   
MAX SPRING DIAMETER 1.437"
MAX OPEN SPRING PRESSURE <480lbs
INLET OFFSET -
QTY SET OF 16
BRAND ULTRALITE
NOTE

EASY FIT

must measure Pushrod length. Will require 8.800" Pushrods when used with STD Cam & Lifters, 

 

 


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