Big Valves and High-Rev Valve Springs
Our superior, fast-flow valve design is dyno-proven to give up to a 7% increase in horsepower. Valves can be used with 45 degree angles recut on your standard seats. An excellent power boost in stock or modified cylinder heads.
Both our intake and exhaust Big Valves are made of stainless steel to our exacting specifications -- the ultimate for improved performance. Stainless valves are more durable and will outlast original-type valves.
High-Rev Valve Springs are made from high-temp, silicone-chrome steel for durability and long life. They prevent valve float at high RPMs. Sold in complete sets.
USA Note: not legal for sale or use on pollution controlled vehicles.
Note: Oversize valves are not available for every application; see below for your car: