Ferrea Aluminum-Magnesium Roller Rocker System Honda Civic Type R 17-18 FK8 K20C1

Ferrea's optimized Special Aluminum Magnesium Roller Rocker System was designed and developed by Ferrea to replace the factory Steel Rocker Arm System and eliminate the V-TEC Function. Fully CNC machined, we use special high quality 70 Series Aerospace Aluminum-Magnesium Alloy, and heat-treat to provide superior strength.

Can be used with stock or any aftermarket camshafts. Uses center lobe only. To work properly you must disconnect the VTEC function & remove the lost-motion assembly components. 

Stock exhaust rocker assembly mass: 270 grams. Stock intake rocker assembly mass: 170 grams. Ferrea rocker assembly mass: 162 grams (40 % less mass than factory exhaust rockers). Stock exhaust rocker fulcrum mass: 122 grams. Stock intake rocker fulcrum mass: 87 grams. Ferrea fulcrum mass: 80 grams.

Note: Ferrea Valve Spring S10166 must use Ferrea Rockers RR1006 due to rocker arm & retainer clearances. Ferrea Intake & exhaust rocker arms are different. INT rocker arms are marked w/RR1006-I & EXH rocker arms are marked W/RR1006-E