Vortec cylinder heads first appeared on the 4.3 liter V-6 engines in 1986. Vortec technology is designed to create a swirling vortex flow inside the combustion chamber, which mixes the fuel and air charge more evenly, leading to cleaner burning, more efficiency, and more power. Chevy Vortec heads can easily be distinguished visually from other types by their kidney shaped combustion chambers. In 1996, Chevy introduced the new Vortec 350ci engine, intended for use in their line of half, three-quarter, and one ton trucks. Performance motor enthusiasts quickly discovered that these heads were capable of 400 horsepower without modification, when teamed with a high performance intake and camshaft. Since then, small block Chevy engines with vortec heads have become heavily sought out by enthusiasts of oval track racing, and participants in other applicable auto sports.
Porting work, such as performed by Brzezinski Racing Products, www.castheads.com, can unleash even more power from Chevy Vortec heads. In business since 1986, they’ve set a new standard for performance parts for the serious racer. Brzezinski Racing Products are specialists in modifying small block Chevy vortec heads for maximum gains in engine performance for the racing enthusiast. Their heads are milled on CNC machines to the closest possible tolerances. by Brzezinski Racing Product’s Undercover Porting adds 15 to 30 horsepower by hand grinding the most important areas of the head, increasing port size by approximately three to five cubic centimeters, while retaining the stock appearance of the head. Their acid porting procedure uses chemicals to enlarge intake ports ten to fifteen cubic centimeters, maximizing the flow of air and increasing total air volume of the intake, providing even large gains in horsepower.
Brzezinski Racing Products specializes in taking the performance of your engine to the max without any alteration to the outside “stock” appearance of your engine.