World Products, INC. For Competition, Street & Marine Applications

MERLIN OVAL & RECT. PORT CAST IRON

Merlin Oval and Rectangular Port cast iron heads provide improved performance over OEM designs.

Merlin Oval Port Heads will out-perform larger heads in many applications. When larger displacement engines (454 to 540 cubic inches) require additional flow, Merlin rectangular Port cylinder heads are the perfect choice. With RightCasttm 310cc and 345cc intake runners-- meticulously crafted to out-perform both factory and other brand aftermarket cylinder heads, you can expect solid gains in air/fuel mixture combustion charges. These heads will respond impressively to higher compression ratios. Click here for TECHNICAL SPECIFICATIONS..		1- Machined surfaces for superior sealing. 2- Exhaust port head bolt bosses raised 1" for unrestricted air flow. 3- Exclusive RightCasttm technology assures optimum port accuracy. 4- True D-shaped exhaust ports assure correct installations. 5- Accepts all Chevy Mk.IV valve train components and accessories. 6- Complete assemblies with Manley stainless steel valves.
RightCasttm 269cc oval or 310 & 345cc rectangular port intake runners.	119cc "open" chamber design far superior to OEM "closed" chambers.

MERLIN II BLOCK CAST IRON

The economical way to get reliable big block power!

1-	Made of high density iron alloy.	6-	Can go to 540" displacement without clearancing.
2-	Reinforced bulkheads for improved strength.	7-	Compatible with all Mark IV components.
3-	Nodular iron 4-bolt main caps for superior reliability.	8-	Can be safely bored to 4.560".
4-	Features Priority Main Oil System for optimum reliability.	9-	Available with 9.800" or 10.200" deck height.
5-	Solid oil pan rails.	10-	Blind tapped head bolt holes.

11-	Indexed lifter bores.

World has taken the knowledge gained over 10 years experience manufacturing Merlin blocks for competition and has developed this economical CNC-machined version that's perfect for marine applications. The Merlin II incorporates such important features as reinforced bulkheads and main webs, thicker decks, and a priority main oiling system-plus essentials for street use, e.g., using the stock Chevy oil pan pattern, OEM 2.750" mains and 100% compatibility with Mark IV components. It has provisions for a spin-on oil filter. The nodular iron 4-bolt mains provide the necessary support for high RPM operation, while maintaining excellent bearing wear. And the indexed lifter bores assure optimum reliability. It's important to note that World's Merlin II blocks are far superior to OEM parts in terms of quality. Each block is precision CNC-machined using only two fixturing operations. Compare this to factory-built blocks, which are done on a production line and passed from machine to machine, causing what is known as "tolerance stacking." World blocks are manufactured to QS-9000 specifications-the global standard of excellence. Merlin II blocks are available with 4.240 and 4.490 bores (to be finish honed by the purchaser) or completely race-prepped. Choice of standard 9.800" or tall 10.200" decks. It's an excellent value in big block power!

BLOCKS AVAILABLE FULLY RACE-PREPPED! For your convenience, Merlin II blocks are available fully race-prepped from the factory. This includes plate honing cylinders to the desired diameter, thoroughly washing the block, installing cam bearing and freeze plugs, protecting all machined surfaces. Ready to assemble! Click here for TECHNICAL SPECIFICATIONS..