Availability
Something amazing happened in 1987—World Products introduced a set of cast iron cylinder heads that were more budget-friendly than aluminum heads, and delivered...
Something amazing happened in 1987—World Products introduced a set of cast iron cylinder heads that were more budget-friendly than aluminum heads, and delivered impressive power gains over stock. Racers and enthusiasts took notice, and since then World has grown into an icon of the performance industry. World engine blocks are the perfect starting point for your next Chevy, Ford, or Mopar performance engine build--from budget-friendly to all-out competition! Top off your engine build or upgrade your existing performance engine with the increased airflow and top-notch features of World Products cylinder...
Something amazing happened in 1987—World Products introduced a set of cast iron cylinder heads that were more budget-friendly than aluminum heads, and delivered impressive power gains over stock. Racers and enthusiasts took notice, and since then World has grown into an icon of the performance industry. World engine blocks are the perfect starting point for your next Chevy, Ford, or Mopar performance engine build--from budget-friendly to all-out competition! Top off your engine build or upgrade your existing performance engine with the increased airflow and top-notch features of World Products cylinder heads. We've got World Products engine blocks, cylinder heads, and valvetrain components in stock and ready for delivery—shop now!
Designed to provide even greater increases than World Products' own Sportsman II heads, the Motown 220 cylinder heads rate as the ultimate small Chevy cast iron heads. Features include high-tech 64cc combustion chambers, 220cc intake runners capable of excellent flow and velocity, high-flow ports, and standard 2.055 in. diameter intake valves. They're ideal for large-displacement small blocks (383 or larger), and are available in bare or complete assemblies with valves, retainers, screw-in studs, guideplates, and your choice of 1.440 in. or 1.550 in. valve springs.
( 1 )
$731.49
—
$2,204.42
World Products has made improvements to virtually every area of the new Merlin IV engine blocks—with the goal of producing the most technologically advanced and best-performing iron BBC block available today! New features include thicker main webs for increased strength and thicker cylinder walls which are nominally .310 in. @ 4.600 in. bore. In addition to the standard BBC 9.800 in. and 10.200 in. deck heights, new heights measuring 9.500 in., 9.850 in. and 10.250 in. are now available. The World Products Merlin IV engine blocks are also available with a 2.120 in. BBC cam journal and standard .842 in. lifter bores, or with a 2.283 in. journal for a 55mm Babbitt cam and .904 in. lifter bores. World Products has added a front oil feed for dry sump systems, and relocated the lifter oil feeds and restrictor provisions to the front of the blocks.
( 3 )
$3,842.02
—
$5,173.48
World Products Merlin cylinder heads for big Chevys combine large intake runners with open combustion chambers to produce good torque and low-end power. The heads are available assembled or bare; rectangular or oval; with or without intake/exhaust valves; and other options. Order the model that best suits your application.
( 7 )
$1,123.15
—
$2,624.42
World Products S/R cylinder heads make it easy to rebuild your engine affordably. They feature hardened steel exhaust seats compatible with unleaded gasoline, extra-thick decks and walls for improved reliability, tapped for screw-in rocker studs, and machined valve cover rails to eliminate leaks. The heads are available bare or assembled for a variety of applications. With the strength, reliability, and great price of these cylinder heads, there's no reason to bother with worn-out junkyard castings or new OEM castings—you can depend on World Products to help you do it right.
( 3 )
$644.88
—
$891.04
Originally introduced in 1987, the latest versions of these Sportsman II heads from World Products continue to be the industry's most popular cast iron cylinder heads. Features include high-flow 200cc RightCast intake runners, Fast-Burn combustion chambers, and your choice of angled or straight spark plug locations. The ports are extra-thick with plenty of room for porting, and the heads are indexed off the chambers to ensure perfect alignment with the cylinders. Other features include universal end pads that'll accept all early and late model accessories, leak-free machined valve cover rails, and the ability to accept both perimeter and center bolt style valve covers. They are available in bare or complete assemblies with stainless steel valves, valve springs, retainers, locks, umbrella-style valve seals, screw-in studs, and pushrod guideplates.
( 4 )
$731.49
—
$1,048.63
World Products PBM Performance block kits are a great way to begin your next engine build. These kits contain accessory parts like freeze plugs, cam plugs, oil galley plugs, cylinder head dowels, timing cover dowels, and bellhousing dowels. With all the little parts assembled for you, it's time to get started! Kits are available for small block Ford or big block Chevy engine applications.
( 4 )
$27.89
—
$30.67
Bolt on a set of affordable World Products S/R Torquer heads and add some serious muscle to your small block Chevy—up to 30 horses over stock. The heads are available bare or assembled for a variety of applications. These cast iron heads feature: * Power-building 170cc intake runners * Dual-pattern raised, leak-free valve cover rails * Tapped for screw-in rocker arm studs * 2.02 in. intake/1.60 in. exhaust valves * Umbrella valve seals * 1.250 in. valve springs * 7 degree retainers and locks
( 2 )
$652.16
—
$891.04
World Products Windsor Jr. heads feature 180cc intake runners that combine high velocity and superior flow to produce excellent torque and throttle response in stock to mildly modified 5.0L engines. The 58cc combustion chambers are sized for true bolt-on compatibility, and have been "tweaked" to optimize efficiency. Windsor Jr. cast iron cylinder heads provide a very cost-effective solution to getting serious power from a Ford 5.0 motor without spending a ton of money. And when it comes to value, you can't beat the assembly packages from World. Top-grade components are used as your assurance of reliability, with World passing bulk buying advantages right through to their customers.
( 7 )
$772.40
—
$1,128.71
World Products has improved virtually every area of the new Merlin Gen VI engine blocks, producing one of the most technologically advanced and best-performing iron BBC engines available today! New features on these big block Chevy engines include thicker main webs for increased strength and thicker cylinder walls (nominally .250 in. @ 4.600 in. bore). They can utilize OE roller lifters or +0.300 in. tall aftermarket tie bar lifters. The World Products Merlin Gen VI engine blocks also include a standard Mark IV fuel pump boss for those wanting to keep a mechanical fuel pump.
( 1 )
$3,842.02
World Products Sportsman parts kits are a great way to start your engine block build. These hardware kits feature the little accessories you always have to hunt for—parts like freeze plugs, cam plugs, oil galley plugs, cylinder head dowels, timing cover dowels, and bellhousing dowels. The contents may vary by application, but there's no more searching for the correct sizes. World Products Sportsman parts kits have your plug and dowel needs covered in one part number.
( 1 )
$27.84
World Products Windsor Sr. cylinder head models combine high velocity and superior flow to produce excellent torque and throttle response in 5.0L engines. Windsor Sr. heads are perfect for slightly modified or stock engines. They have been designed in collaboration with leading Ford racers. The 64cc combustion chamber is sized for true bolt-on compatibility, and has been "tweaked" to optimize efficiency. Windsor Sr. cast iron cylinder heads provide a very cost-effective solution to getting serious power from a Ford 5.0 motor without spending a ton of money. And when it comes to value, you can't beat the assembly packages from World. Top-grade components are used as your assurance of reliability, with World passing bulk buying advantages right through to their customers.
Not Yet Reviewed
$772.40
These World Products race flow stainless steel valves are excellent-quality valves at an affordable price. All are made from stainless steel (intakes are NK-841; exhausts, XH-424), with chrome stems and hardened valve tips. Street Flo series valves are fully machined and swirl-polished, and both the materials and the heat treating process are superior to those of the budget replacement series valves.
Not Yet Reviewed
$10.99
—
$15.95
World Products main caps are precision CNC-machined from superior-quality 1050 billet steel or ductile iron and are proudly 100 percent manufactured in the USA. The main caps are designed to provide maximum stability, strength, and balance. Front and rear caps are also available. Use these caps together for the ultimate in bottom-end stress and flex management.
Not Yet Reviewed
$112.98
—
$282.46
The engineering team at World Products collaborated with leading Ford racers and professional engine builders and developed the Man O'War replacement blocks for the popular 351 small block. They are available in two deck heights, to ensure compatibility with all popular OEM and aftermarket cylinder head/intake manifold combinations. World Products' new Man O'War Ford blocks have been created utilizing contemporary CAD/CAM manufacturing technology, for more precisely-detailed blocks than were ever before possible through conventional foundry methods. And they're made to QS-9000 quality standards, the highest in the industry.
( 3 )
$4,571.32
World Products Motown blocks are a great starting point for your performance engine. They feature many improvements over factory castings, including thicker cylinder walls, nodular iron main caps, and special bosses for front-feed oil systems. They will clear strokes up to 4.00 in. without clearancing and are available in different main and bore sizes to suit your needs.
( 1 )
$3,781.95
—
$4,736.26
World Products offers PBM Performance replacement cam bearings for a wide range of year/make and engine applications from the 1940s and up. The primary job of these bearings is to support the camshaft and allow it to rotate—so it will activate pushrods and rocker arms to open and close valves. Cam roller bearings are designed to put up with dynamic forces that are produced as the cams rotate and as the valves open and close. World Products performance bearings are machined from tri-metal copper-lead alloy, manufactured to original specs for precise fit and function.
Not Yet Reviewed
$45.71
World Products Motown LS valley plate and cover assemblies are designed specifically for Motown LS blocks. These valley covers are for use with carburetor-type intake manifolds with a distributor or LS-style EFI intake manifolds when used with a crank trigger. Whatever route you decide to go, Motown LS valley plate assemblies have you covered.
Not Yet Reviewed
$502.80
World Products' Motown billet timing sets are all-new and designed specifically to work with Motown small block Chevy engine blocks that have a 0.134 in. raised cam. Each timing set is precision-machined from billet steel and features 0.250 in. diameter high tensile rollers on a double-roller timing chain. These timing sets are available with an adjustable or non-adjustable upper gear and include a Torrington bearing.
Not Yet Reviewed
$164.71
—
$294.11
World Products offers guideplates for a variety of year/make and engine applications from the 1940s and up. Machined from hardened steel, these replacement parts keep your pushrods in line with the lifter cups and rocker arms, while preventing deflecting or walking sideways. They're available in flat and raised styles for different pushrod sizes. Stabilize your valvetrain with support from World Products guideplates.
Not Yet Reviewed
$3.99
World Products Merlin main cap dowel pins will ensure the location of cap is consistent and that the main bores will stay the same on the block during the building process. They are designed for World Products Merlin III blocks. Keep your project aligned properly with the help of Merlin man cap dowel pins.
Not Yet Reviewed
$1.99
The engineering team at World Products collaborated with leading Ford racers and professional engine builders to develop the Man O'War replacement blocks for the popular 302 small block. They are available in two deck heights to ensure compatibility with all popular OEM and aftermarket cylinder head/intake manifold combinations. World Products' new Man O'War Ford blocks have been created utilizing contemporary CAD/CAM manufacturing technology for more precisely detailed blocks than were ever before possible through conventional foundry methods. And, they're made to QS-9000 quality standards, the highest in the industry.
Not Yet Reviewed
$4,494.05
—
$4,571.32
World Products Motown LS water return kits consist of quality components needed to plumb your Motown LS block for cool performance. They include a 6061 T-6 billet aluminum Moroso thermostat housing, and PBM Performance red/blue anodized aluminum fittings with either their Pro-Lok blue rubber or Pro-Flo stainless steel braided hose.
Not Yet Reviewed
$351.10
—
$397.13
World Products Motown LS iron blocks feature significant updates that make them more user-friendly and versatile. They allow you to utilize affordable small block components like rotating assemblies, oil pans, distributors, and accessories, while taking advantage of the LS high-flowing cylinder heads. World Motown LS iron blocks are designed to provide a lighter, stronger foundation for a less expensive engine build with an easier install--no matter what you are putting it in. Features include: * Lighter than an OEM LS iron block * 9.240 in. LS deck height * Uses high-flowing LS cylinder heads * Standard SBC crankshafts, rods, and bearings * Use distributor or crank trigger ignition * LS EFI or carburetor intake * LS and SBC-style motor mounts * SBC-style oil pans and pumps * SBC-style oil filter pad * SBC bellhousing pattern * New design priority main oiling system ensures reliable lubrication of main bearing * Available with ductile or billet 4-bolt main caps
Not Yet Reviewed
$3,991.76
—
$4,736.26
When it comes to Ford 302/351 replacements, these Man O'War bare blocks are without a doubt the most advanced cast iron blocks on the market today. They were designed in collaboration with leading Ford race teams, yet are also engineered for 100 percent reliability on the street. Like the original Man O' War, they deliver performance!
( 1 )
$4,494.05
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
