Availability
On Sale
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
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$5,173.48
$3,457.82
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$4,656.13
On Sale
Holley LS valley covers are the latest accessories offered for the GM LS engine platform. These covers install between the two banks of cylinder heads, depending on your usage of knock sensors, displacement on demand, and active fuel management. They're available in a cast aluminum finned design to match Holley's popular valve covers, as well as a billet aluminum trussed version for a race-inspired look. The valley pan covers are offered in a variety of finishes.
( 2 )
$299.95
$269.95
On Sale
Mr. Gasket brass freeze plug kits eliminate any chance of rusted-out engine expansion plugs. Though they're designed for marine applications, these kits are ideal for long-term stored vehicles, as well as for everyday street use. The plugs guard your engine against freeze damage and cracks when there is insufficient antifreeze protection. Each kit includes all of the plugs needed for a complete (and specific) engine block—for applications from 1955 and up.
Not Yet Reviewed
$31.46
$28.31
On Sale
Go Fast Bits offers DV Plus Diverter Valves with TMS (Turbo Management System) Advantage for a wide range of vehicles, particularly imports. GFB's DV+ solution couldn't be simpler—keep what works and replace what doesn't. GFB expands the DV+ range with a direct-fit solution for the weak factory diverter valve used on many European vehicles. The solenoid coil itself from the factory-fitted valve is great (the ECU opens it faster than any pneumatic valve so why replace it?)—but the weak point is the valve mechanism itself. So GFB's DV+ solves this problem by replacing just the valve parts with an anodized billet aluminum housing fitted with a brass piston machined to exacting tolerances. The end result is sharper throttle response, lightning-fast valve actuation, and it will hold as much boost as you can throw at it. Other manufacturers' products involve replacing the entire system with a traditional pneumatic valve, requiring long vacuum hose runs, additional parts for tapping into the intake manifold vacuum—plus either a different solenoid valve to actuate the pneumatic valve, or a ballast resistor to plug into the OE wiring loom. All these additional items result in a product that is slower, less responsive, more expensive and takes much longer to install. GFB's DV+ solution on the other hand is more responsive, less expensive, easier to install, and doesn't cause compressor surge/turbo flutter. Order the model recommended for your vehicle. Additional notes: * Retains the factory solenoid coil for seamless integration * Replaces plastic valve parts with metal for reliability and strength on chipped engines * Exclusive "pilot-actuated" valve mechanism for rapid response at high boost
( 6 )
$166.50
$149.85
On Sale
Why reuse your old dowel pins when you have machine work done on your block? I can't think of a good reason, especially when these Mr. Gasket dowel pins are inexpensive and readily available. They are made from high quality steel, precision machined and case hardened for accurate cylinder head alignment.
( 4 )
$17.19
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$20.29
$9.45
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$11.16
On Sale
QuickTime offers bellhousing accessories, including these dowel pins, to help you to complete your project. They're made from quality material and are designed to correct the improper register bore alignment of bellhousing to your engine crankshaft center line.
( 4 )
$58.95
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$83.35
$32.42
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$45.84
On Sale
Some engine swaps and racing applications do not need the heater, but elimination of the heater is difficult on the 7.3-liter Godzilla engine since the hose inlet and outlet passages are tough to plug and look like a cobbled up mess using traditional hoses, clamps, and plugs. Holley Ford 7.3L Godzilla rear block plug kits include a machined steel billet plug with O-ring seal, mounting bracket, and retaining bolt to block off the rear port with a professional look. Features: * Works with Holley's front/heater block-off kit to block all cooling ports * The plug is designed to handle high pressure and high temperatures--typical conditions of the cooling system * Easy installation without the need to tap holes or fabricate special plugs and caps * Steel plug features a clear zinc-plated finish
Not Yet Reviewed
$19.49
$10.72
On Sale
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
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$4,571.32
$4,044.64
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$4,114.19
On Sale
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
$4,114.19
On Sale
Crown Automotive main cap fasteners are durable steel construction. The components in your engine are only as strong as the fasteners holding them together. Some of the most stressed-out parts of an engine are the relatively inexpensive nuts and bolts that hold it all together. Crown Automotive offers a selection of high-quality fastener parts for replacement of snapped or worn parts. Order the main cap fasteners designed for your engine application.
( 1 )
$3.99
$3.59
On Sale
Crown Automotive engine block coolant plugs are manufactured from heavy-duty steel that meets OEM standards for proper stock replacement. These plugs install simply in the vehicle's factory location. Whether you're doing a quick flush or need a replacement fastener, Crown engine block coolant plugs will do trick!
Not Yet Reviewed
$1.99
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$4.99
$1.79
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$4.49
On Sale
Keep your coolant contained with BD Diesel Cummins Killer frost plug plates. These aluminum replacements don't require the need to punch out the old frost plug—they work with your existing frost plug in place, blown out, or leaking. The attachment is secure with five flanged head bolts, and one large O-ring keeps everything sealed up tightly. Killer frost plug plates can be used with or without a TCC crossover tube. Order the model designed for your vehicle and engine application.
Not Yet Reviewed
$69.95
$62.96
On Sale
GFB offers a range of high-flowing external wastegates that are small—the most compact size in their class—but are big on flow! These external wastegates are built to cope with the extreme conditions and the harsh environment that's associated with high-boost and exhaust temperatures. Key features include: * Most compact wastegate range on the market for easy installation in tight locations * Body, valve, seat and all mounting hardware is CNC-machined from high-temp stainless steel * Actuator housing CNC-machined from billet 6061 aluminum * Nomex-reinforced silicone diaphragm * Internal shroud protects valve stem from excessive heat and prevents carbon-related sticking * V-band clamp mounting system * Made in Australia under ISO 9001
Not Yet Reviewed
$405.00
$364.50
On Sale
Keep your Cummins-powered diesel truck on the road with these BD Diesel Killer dowel pin kits. These kits are designed to replace the factory dowel pin that can work its way loose and fall into the timing gears, causing extensive damage. These kits include everything you need to complete the job correctly to keep your truck on the road. BD Diesel designed these Killer dowel pin kits to be a more permanent and safe solution to a chronic problem faced by many trucks.
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$207.95
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$243.95
$187.16
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$219.56
On Sale
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
$3,457.82
On Sale
World's Motown blocks are without a doubt the most feature-laden, engine builder friendly, cast iron blocks on the market. And because of their superior temperature control and rock-solid stability, experts claim they're worth up to 20 hp more than other blocks on the market! At first glance, one of the more noticeable differences between the World Motown and OEM Chevy blocks are the 'bulges' at each cylinder. That's because the Motowns have thicker cylinder walls, and the water jackets have been expanded to provide required cooling. Order the model and options preferred for your application. Important features are as follows: * Made from high-density cast iron * 9.025 in. deck height with .600 in. minimum thickness * Dry sump valley scavenge lines drilled * Clearanced for 4.000 in. stroker crankshafts (H-beam steel rods) * Integral mounts for spin-oil filter * Dry sump systems can feed from front or rear of block * Available with 4-bolt nodular or splayed billet caps * Can be bored to 4.200 inch maximum * Water jackets expanded for better cooling * Standard Chevy cam location and cam bearings * OEM starter, fuel pump, and engine mounts (dual) * Blind tapped head bolt holes for extra integrity * 100 percent compatible with OEM parts * Indexed lifter bores (can use standard-height lifters) * Main caps are located by dowels (not OEM outside register) * Weight: Approximately 190 lbs.
( 1 )
$4,549.46
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$4,736.26
$4,094.51
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$4,262.63
On Sale
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
$4,044.64
On Sale
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 )
$4,736.26
$4,262.63
On Sale
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
$4,736.26
$4,262.63
On Sale
A strong foundation—World Products SBC Motown LS bare blocks offer the groundwork to fortify your performance build. These iron blocks allow you to employ high-flowing LS-style heads and manifold, as well as expensive, already-purchased pulley kits and external accessories. Plus, the block has a coolant capacity in excess of 150 fluid oz. for superior cooling. Begin with solid strength … and finish with winning performance; start with a World Products SBC Motown LS bare block.
( 1 )
$4,736.26
$4,262.63
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