World’s SR Torquer provides up to 30HP over stock heads. These heads are designed with extra-thick decks and walls for improved reliability as well as equipped with hardened steel exhaust seats that are compatible with today’s unleaded gasolines. They are machined for screw-in rocker arm studs for extra durability. They feature a a larger 2.02 Intake Valve and a 1.60 Exhaust Valve.
