FORD FE Shaft Roller Rockers Arm Assembly FE 390 427 428 Ultra Gold Kit 1.76:1 Ratio

Yella Terra YT6759 FE Shaft type roller rockers, Ford FE 390 428 Big Block.

These FE 390 Rockers feature specifically designed and ground Modular Shafts with a 1.78 Ratio Rockers

(Includes Cradles, Modular Shafts and Assembled Adjustable Arms).

Pro Street 428 FE Shaft Rockers - FE Big Block Shaft Rockers

• Built to withstand 600lbs* 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.
• 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 circle)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 6759

MAKE    FORD FE

ENGINE  FE 390 428 - Ford FE Big Block

PART TYPE           ROLLER ROCKERS

SHAFT MOUNTING STYLE            Modular Shaft Type

SHAFT ROCKER ARM RATIO        1.78

STUD SIZE           

ADJUSTABLE       Yes - CUP ADJUSTER TO SUIT 5/16" BALL END PUSHRODS

SHAFT ROCKER ARM STYLE         FULL ROLLER

SHIMS INCLUDED             No

SHAFT ROCKER MATERIAL          ALUMINIUM

SELF-ALIGNING        NO

SHAFT ROCKER ARM BODY STYLE    STANDARD               

MAX SPRING DIAMETER 1.55"

QTY        SET OF 16

BRAND  Yella Terra - PRO STREET

NOTE     Total rocker system. Includes Cradle, Modular Shafts and Assembled Adjustable Arms

NOTE:    Requires 5/16" Pushrods - Ball/Ball