World’s unique MAN O’WAR aluminum block represents the state of the art design in small block Ford technology, incorporating many important features that leading Ford racers have asked for. Tipping the scales at only 90 lbs. the MAN O’WAR is reinforced throughout, and has provisions for two extra head bolts per cylinder to provide superior clamping of the heads, essential for high combustion pressure applications. World’s MAN O’WAR 10° cylinder heads are similarly equipped to be the perfect match to the block. Add 1045 billet steel splayed 4-bolt mains and ARP hardware for bottom end strength and bring on the power adders! There are many important reasons why World’s MAN O’WAR aluminum blocks are the most reliable of their kind on the market. It features a priority main oiling system which ensures that the crankshaft is lubricated first and the cylinder heads last. Water jackets are expanded over other block designs to improve cooling. And the block is reinforced in all critical areas, including bulkheads, mains, and valleys. It’s a CAD engineered masterpiece! GET IT PREPPED! For the enthusiast who is planning to assemble an engine in their home garage, getting the block in a RACE-PREPPED state is a no-brainer. Our experienced staff performs important basic operations like: • Deck milling +/- .0025” • Main journal honing +/- .0004” • Cylinder bore plate honing .001” oversized +/- .0005” • Lifter bore honing +/- .0005” • Block hot tanking • Cam bearing installation • Freeze plug installation • Dowel pin and pipe plug installation • Block deburring • Machined surfaces sprayed with rust inhibitor • Protective wrapping More and more professional engine builders are also recognizing the benefits of ordering race-prepped blocks instead of endeavoring to perform these many tasks themselves. Many have realized that their time can be better spent doing critical assembly work such as degreeing in camshafts and setting up the valve train. By employing race-prepped World blocks the shop’s through-put can be accelerated, and there are demonstrated savings in terms of personnel, shop equipment, space and cash flow. Whether you're an enthusiast or engine builder, save time and money!

Material: 357 T6 Aluminum Deck Height: 9.500" Deck Thickness: .600" minimum Cam Bearings: Stock - can be bored to 60mm Bore: 3.990" (bore to 4.000") or 4.115" (bore to 4.125") Cylinder Head Attachment: Stock plus 2 extra head bolts per cyl. (not req.) Maximum Bore: 4.155" Water Jackets: Expanded for better cooling Lubrication: Priority main oiling system. Dry sump capable Filtration: Integral mount for spin-on filter Oil Pan Rails: Stock Ford Crank Clearance: Up to 4.250" stroke Main Caps: Splayed billet steel, 4 bolt Oil System: .500" galleys Weight: 108 lbs. with caps and sleeves