Ferrea Aluminum-Magnesium Acura K20 K20A K20A2 K20Z1 K20Z3 Roller Rocker Arm RR1004

Description

Upgrade your Acura/Honda K20 engine with the Ferrea Aluminum-Magnesium Roller Rocker Arm Set (Part #RR1004). Designed for 2nd Gen K20, K20A, and K20Z1 motors, these precision CNC-machined rocker arms handle over .650” lift at 11,000 RPM, making them ideal for high-lift, high-performance builds.

Key Features:

• Complete set of 8 rocker arms

• CNC machined from lightweight aluminum-magnesium alloy

• 48% lighter than OEM rockers (160g vs. 307g) for reduced valvetrain mass

• Optimized fulcrum mass: 78g (vs. 134g stock)

• Increased strength at the shaft area for durability

• Reduces valve spring harmonics by 8%

• Designed for single lobe camshafts only — eliminates VTEC function

• Compatible with Ferrea, stock, or aftermarket cams

• Requires standalone ECU tuning and removal of lost-motion assembly for proper use

Perfect for drag racing and serious Honda engine builds, this rocker arm set gives you a competitive edge with improved valve control and durability at high RPMs. Note: VTEC must be disabled for operation.

Get the ultimate performance upgrade for your K-series engine with Ferrea’s top-tier rocker arms!