World Products Engine Blocks and Heads Brand
World Products powers high-performance engines with precision-engineered blocks and heads built for durability and versatility. Engineered from high-density cast iron and advanced alloys, their blocks like the Merlin Gen VI Big Block and Man OWar SBF handle extreme power while supporting a variety of builds. Cylinder heads such as the S/R SBC and S/R Torquer combine hardened steel seats, multi-angle valve jobs, and robust hardware to boost airflow and reliability. American-made and rigorously quality-checked, every component delivers street-ready performance, race-capable strength, and broad aftermarket compatibility. Performance, strength, and innovation converge in every World Products engine part.
Top World Products Engine Blocks and Heads
World Products Motown II SBC Block
This Small Block Chevy foundation from World Products offers high‑strength cast iron construction with priority main oiling, and is safely bored to 4.200″, making it a go‑to for builders seeking versatile street or race SBC platforms.
World Products Merlin IV BBC Block
Designed for serious Big Block Chevy builds, this iron block features thicker main webs and cylinder walls, multiple deck heights, and was engineered to be the “most technologically advanced” iron BBC available today.
World Products Man O’War SBF Block
For Ford small block enthusiasts, the Man O’War block brings 40,000 psi alloy cast iron, thicker main webs, and six head‑bolts per cylinder, delivering serious strength for street or strip applications.
World Products delivers precision-engineered engine components designed to push performance boundaries while ensuring unmatched durability and reliability.
Small Block Chevy (SBC)
SBC blocks and heads like the Motown II series provide reinforced construction and versatile deck heights for street and race builds, supporting a wide range of bore sizes and camshaft configurations.
Big Block Chevy (BBC)
Merlin BBC blocks are crafted for extreme power applications, featuring high-density cast iron, expanded water jackets, and reinforced main caps for long-lasting strength under heavy loads.
Small Block Ford (SBF)
The Man O’War SBF iron block offers a robust 40,000 psi alloy design, thicker main webs, and six head bolts per cylinder, perfect for builders seeking maximum durability and gasket clamping reliability.
Intake Manifolds
World Products intake manifolds optimize airflow and fuel distribution for various SBC, BBC, and SBF configurations, improving throttle response and overall engine efficiency.
Valve Covers
Made from quality materials and precision cast, these valve covers offer both protection and style while ensuring proper clearance for high-performance valvetrain setups.
Valve Springs and Valves
Engineered for reliability and endurance, these components maintain valvetrain stability at high RPMs and support a wide range of camshaft profiles, from mild street to extreme race applications.
John Peterson: “I’ve built multiple street and track SBC engines, and switching to the Motown II block was a game-changer. The CNC machining is flawless, and I noticed immediate improvements in oil pressure and block rigidity. The versatility allowed me to fit aftermarket heads and a performance cam without any modifications. Truly a top-tier product for serious builders.”
Maria Lopez: “Using the Merlin BBC series for my drag racing setup exceeded all expectations. The block handled extreme boost and high RPMs without any signs of stress or warping. The priority main oiling kept everything running smooth, and the reinforced main caps gave me complete confidence on race day. Highly recommend for anyone pushing serious horsepower.”
David Thompson: “The Man O’War SBF block is a masterpiece of engineering. Installing it in my street/strip build was straightforward thanks to the precise machining. Six head bolts per cylinder make gasket sealing rock solid, and the thicker main webs give unbelievable strength. I’ve run it hard for thousands of miles, and it still shows zero wear. World Products clearly focuses on quality and performance.”
World Products FAQ
What materials are used in World Products engine blocks and heads?
World Products primarily uses high-density cast iron and specialized alloys, ensuring durability, heat resistance, and long-lasting performance for both street and race applications.
Are World Products blocks compatible with aftermarket components?
Yes, most blocks and heads are designed with versatility in mind, supporting a wide range of cylinder heads, lifters, intake manifolds, and other aftermarket performance parts.
Can I use these engine blocks for street cars?
Absolutely. World Products manufactures components suitable for street, track, and racing, and many products are emissions-compliant in all 50 states.
Do World Products blocks require special installation procedures?
While installation is straightforward for experienced builders, World Products provides torque specifications and detailed instructions, and using professional installation is recommended for high-performance builds.
What is the warranty or quality assurance on these products?
All World Products components are American-made and undergo rigorous quality control, including CNC machining and inspection, to ensure dimensional accuracy and long-term reliability.
How do I choose the right block or head for my build?
Consider your engine type (SBC, BBC, SBF), intended use (street, race, or both), and desired performance level. World Products provides detailed specifications for bore sizes, deck heights, and compatibility to guide your choice.
Where can I purchase World Products parts?
Authorized dealers like RPM Ron’s Precision Machine and online retailers such as Summit Racing carry World Products blocks, heads, and accessories.
Are there upgrades available for high-performance racing?
Yes, products like the Merlin BBC series and Man O’War SBF block are specifically designed for high-RPM and high-horsepower applications, with reinforced main caps, expanded water jackets, and thicker main webs for extra strength.