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PERFORMANCE BRANDS THAT MAKE A DIFFERENCE

If you were a performance enthusiast looking for cylinder heads prior to 1987, your choices were limited to scrounging through junkyards, going to a dealership for OEM parts, or spending a small fortune on aftermarket aluminum racing heads. There was no in-between option. At this point, noted speed merchant Bill Mitchell and a skilled team of engineering and manufacturing personnel collaborated to develop an affordable cast iron head for the small block Chevrolet that delivered impressive performance gains. Their first offering, the World Products Dart II® (now Sportsman II®) cylinder head, became an instant success and was named Product of the Year in 1988 by Hot Rod Magazine. It produces 30-70 HP over stock heads, and remains the ONLY high performance cast iron small block head to be certified.

PERFORMANCE BRANDS THAT MAKE A DIFFERENCE

Big block Chevrolet enthusiasts were next to benefit from World Products magic? in the form of the highly effective Merlin® line of cylinder heads and engine blocks. Ultimately, the line has expanded to include both aluminum and cast iron blocks and cylinder heads, with complimenting intake manifolds. From street rods and drag cars to off-shore boats and monster trucks, you'll find Merlin power in charge.

PERFORMANCE BRANDS THAT MAKE A DIFFERENCE
Big block Chevrolet enthusiasts were next to benefit from World Products magic, in the form of the highly effective Merlin® line of cylinder heads and engine blocks.  Ultimately, the line has expanded to include both aluminum and cast iron blocks and cylinder heads, with complimenting intake manifolds. The Merlin line represents a remarkable combination of advanced designs and state-of-the-art manufacturing technology to provide greater levels of performance at affordable prices. From street rods and drag cars to off-shore boats and monster trucks, you'll find Merlin power in charge.
Worlds commitment to Ford enthusiasts includes the Man O'War® replacement block for 302/351 engines and their Windsor based Small blocks can be built to the legendary proportions of a 460 Big Block. The World line of Ford heads is available in Iron & Aluminum with versions suitable for Restoration to Pro Stock racing applications.

For the LS, World’s  Warhawk® line of replacement blocks and cylinder heads for GM™s LS1/LS7 and C5R offerings is far superior to OEM. World's engineering team has collaborated with leading engine builders and racers to create an LS-series block that has many important design features you won't find in the OEM block, plus two cylinder heads; a 12° LS7 model for serious competitors (uses LS7 components) and a 15° high performance replacement for the LS1.  Without question, World’s Warhawk products are setting new standards & performance records from coast to coast.

In 2008 World introduced the aluminum 426H® and Wedge engine blocks. World Products engineers have collaborated with leading Chrysler racers and developed a highly refined version of the original 426-style block. It's been designed using CAD/CAM 3D technology not available when the original was developed, and is manufactured to far more critical specifications.
World has also gone back to its roots with the venerable small block Chevy and introduced the Motown® line of cast iron and aluminum blocks and heads.  Most recently, World has developed a superior 23° head for GM Vortec (220cc intakes) and a awesome-flowing 235cc model for today’s generation of powerful big-inch small blocks. And there are more new developments on the horizon.
Continuing in this tradition comes the new Merlin X 409®. A W-Block based on World’s Merlin X Big Block, this is the first W-Block replacement in almost 50 years. Made of Aluminum and using many standard Big Block components, the 409 makes building one of these Historic engines easier than ever. Just as they began with producing the first aftermarket Chevy head for the Small Block, World is committed to not only producing, but Innovating the highest quality Engine Components made in the USA

WE SELL HORSEPOWER
The best performance from an Engine can only by had by using components that work together. Which Head goes with with what Manifold and what Valvetrain do you use? Bill Mitchell's World Products has built 1000's of engines and that information solves that puzzle, once and for all. You cant build a great motor with Flow numbers and fancy ads. While some Head manufacturers try to impress you with Flow numbers, we inform you of actual Horsepower results. You can only get the best performance using matched components and now that performance is just a click away. WORLD has released, for the first time ever, the TOP SECRET ENGINE HORSEPOWER RECIPE CDs. Make World's 25 years of experience work for you! You will get the Dyno tests, Parts list & Technical information to get the same results that we get making these High Performance Engines. The experience of thousands of Dyno Tests and years of Engine Building is now in the palm of your hand. We sell Horsepower.