HOLDEN V8 304 308 5.0L EFI VN HEADS 7/16 STUD ROLLER ROCKERS, 1.65, PRO STREET, ADJUSTABLE POSI LOCK

YELLA TERRA YT5010, HOLDEN V8 7/16 STUD MOUNT ROLLER ROCKERS

PRO STREET - 1.65:1 Ratio Holden V8

SUIT HOLDEN V8 - RED/BLUE/BLACK Motors with Both Cary Heads and VN EFI HEADS*. 1988+

Designed for high revving street/strip applications. No other comparable product can compete with 600lbs* maximum open spring pressure whilst retaining factory size bolt-down hardware.

Ideal for harsh street and strip applications, especially in place of the factory stamped steel GMH rockers that have seen decades of wear and tear. These rockers have got what it takes to last!

BRAND: YELLA TERRA

PART NO              YT 5010

MAKE    HOLDEN V8 253 308 

MODEL: All Holden V8's with a 7/16 stud (Carby & VN/EFI type Cylinder Heads)

SERIES   Pro Street

ENGINE  253/308 4.2L/5.0L V8

YEAR      VARIOUS

PART TYPE           ROLLER ROCKERS

MOUNTING STYLE           STUD MOUNT

ROCKER ARM RATIO       1.65

STUD SIZE            7/16"

ADJUSTABLE      POSILOCK

HYDRAULIC         SUITABLE FOR HYDRAULIC OR SOLID LIFTERS.

ROCKER ARM STYLE         FULL ROLLER

SHIMS INCLUDED             NO

ROCKER MATERIAL          ALUMINIUM

SELF-ALIGNING NO, will need guide plates - See "DRP-4835-GP" for adjustable guide plates option. 

ROCKER ARM BODY STYLE            STANDARD

ROCKER ARM NUT STYLE               POSILOCK

MAX SPRING DIAMETER 1.550"

MAX OPEN SPRING PRESSURE    <600lbs

QTY        SET OF 16

NOTE     Use with Pushrod Guideplates and case hardened pushrods. To machine for screw in studs, remove 0.300" from Rocker Pads, drill and tap for 7/16" UNC.