Availability
Quicksilver's long block assemblies are all-new (not rebuilt, remanufactured, or reconditioned) marine engines and feature improved components, technology, and built-in durability designed to withstand years of marine duty--one of the most abusive and demanding environments for any engine. The foundation of every Quicksilver long block engine is a new iron block cast to Quicksilver's specifications and designed expressly for marine duty. Thicker castings ensure quieter operation and better durability in saltwater when compared to a standard automotive block. They feature Black-X composite valves that contribute to a 42 percent reduction in valve wear compared to traditional stainless steel valves with hardened seats, while smooth-flowing cylinder heads deliver added performance. Quicksilver Value Series long blocks are cost-effective solutions when replacing an engine with a reliable fuel system and dress components that can be reused, typically when the original engine block has suffered freeze damage. Select the long block needed for your build.
Not Yet Reviewed
$5,324.99
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$21,246.99
S&S Cycle offers MK136 Black Edition engines for a variety of Harley-Davidson© oil-cooled Touring street bikes from 2017 and up. Details include: CYLINDER HEADS: * High-flow cylinder heads with premium seats, guides, valves, springs, and seals * +1mm oversized intake and exhaust valves * Valves are .030 in. longer than stock for improved valvetrain geometry * .605" max lift valve springs * High-strength alloy used in cylinder head casting, improved strength at high temperatures * Enlarged cooling passage around the exhaust seats * S&S Exclusive breather boxes CRANKCASE: * All premium quality components * Patented dual-spray piston cooling jets * Precision-machined oil scraper * Enlarged oil sump * Contoured floor allows oil to easily drain back to the sump MK136: * Forged pistons * S&S performance oil pump and cam support plate * Premium tappets and tappet cuffs * Billet aluminum covers * Sprocket shaft spacer included * Champion spark plugs * Retains stock engine height * Includes cam cover badge * Powdercoat finish matches factory finish * Huge displacement increase means a huge power increase
Not Yet Reviewed
$11,999.95
Torque wins races. Reliability wins championships. Quicksilver Circle Track crate engines are designed to deliver on both counts. These small-block V8 engines are factory sealed for fair competition and will deliver season after season of reliable racing performance with minimal maintenance, while producing full power on pump gasoline. To comply with popular stock-class racing rules, Quicksilver Circle Track engines are shipped with factory seals on the intake, front cover, oil pan, and cylinder heads. Built with premium quality components, they feature a roller camshaft design and offer the best value for dirt and asphalt Circle Track racing. Order the engine needed for your build. Features: * Durable GM Gen+ remanufactured cast iron blocks -- Cost-effective and durable solution for this application -- Single-piece rear main seal -- 8-bolt 4-barrel aluminum intake manifold -- 6-quart oil pan * Roller camshaft * Hydraulic lifters * Stainless steel valves, hardened valve seats, head gaskets with stainless steel fire rings, and heavy-duty marine valve springs for extended life * 6 in. SFI-approved balancer * For off-road racing only * Shipped with a fresh fill of Quicksilver Performance Racing 25W-40 synthetic blend oil
Not Yet Reviewed
$7,306.31
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$16,972.50
ATK High Performance Chrysler 360 Magnum 350 HP complete long block crate engines incorporate Engine Quests upgraded casting with the following benefits: * Thicker deck for greater strength * Improved design resists cracking * Superior port finish for increased flow * Water flow redesigned for greater thermal conductivity * Hardened exhaust seats * CNC-machined guides and seats Engine specifications: * HP: 350 * TQ: 430 * Block: OE Magnum roller block 1993-2001 * Bore/stroke: 4.040 in. x 3.580 in. * Displacement: 360 cu. in. * Crankshaft: OE cast * Rods: OE 6.123 in. * Pistons: Hypereutectic 9.3:1 compression * Rings: Chromoly * Camshaft: Hydraulic roller * Cam specs: 207/217 at 50 .496/.496 112 LSA * Timing chain: Double roller * Cylinder heads: New upgraded Engine Quest cast iron 62cc/172cc 1.78/1.50 * Rocker arms: Steel 1.6 pedestal rockers * Oil pan: 5 qt. OE front sump * Oil pump: Melling STD volume * Balancer: Externally balanced * Intake manifold: Edelbrock performer RPM air gap dual plane * Distributor: Pro billet RTR (Iron Gear) * Water pump: OE early pump * Carburetor: Quick Fuel 680 cfm vacuum secondary's electric choke * Fuel pump: Holley mechanical 110 gph * Spark plugs: Autolite * Spark plug wires: 8mm
Not Yet Reviewed
$6,898.99
Chevrolet Performance's largest, most powerful street engine is here. The ZZ572 c.i.d. 620 hp deluxe long block crate engines are built around an all-new generation VI one-piece main seal tall deck—572 c.i.d. with approximately 9.6:1 compression, 620 hp at 5,500 rpm, and 650 lbs.-ft. of torque at 4,500 rpm, with a recommended max rpm of 6,000. These all-new race blocks have a 4.560 in. bore and are filled with forged 4340 steel cranks with 4.375 in. stroke, shot-peened forged 4340 H-beam rods, and forged aluminum pistons with full floating wrist pins. They include re-designed rectangular port aluminum cylinder heads with 118cc combustion chambers, and stainless steel valves at 2.25 in. intake side and 1.88 in. exhaust side. Experience massive torque and horsepower—from Chevrolet Performance! Additional engine specs: * Hydraulic roller camshafts * Valve lift: .632 in. intake and .632 in. exhaust side * Duration at .050 in. for intake is 254 degrees and 264 degrees exhaust side * Hardened chromoly retainers * Dual valve springs 1.50 in. coil diameter, 1.800 in. installed height with 197 lbs. seat pressure * Aluminum roller rockers with 1.7:1 ratios * High performance one-piece push rods * Tall deck single-plane intake manifold and 850 cfm carburetor * GM distributor handles ignition * Spark plugs and wire are included, along with screened and louvered windage trays * High-RPM torsional dampers * Pump gas friendly
Not Yet Reviewed
$23,080.74
AFR 377cc Magnum BBC Competition racing heads feature 100 percent CNC-ported intakes, exhausts, and chambers; A356 aluminum castings, Titanium retainers, and high-quality components throughout. These Magnum BBC heads are best suited for large displacement (540 plus) racing engines operating at or below 7600 rpm. They are available assembled and bare. AFR assembled 377cc Magnum BBC heads typically include: * 11/32 in. intake valves * 11/32 in. Tulip exhaust Valves * PAC Racing Spring 1.625 O.D. Solid Roller, 275 lbs. on seat, .850 maximum lift * 10 degree Titanium retainers * 10 degree 11/32 in. valve locks with lash cap recess * ARP 7/16 in. rocker intake and exhaust studs * Adjustable 3/8 in. guide plates * 11/32 in. Viton® valve seals * Hardened spring cup * Intake and exhaust valve seats * 11/32 in. intake and exhaust bronze valve guides
Not Yet Reviewed
$5,344.50
Ford Performance Parts D347SR7 long block spec engine upgrade kits include all of the unique Ford parts to build a D347SR7 spec engine for NASCAR late model (2019). In addition to the parts included in the kit, the engine builder will need to buy other readily available aftermarket parts to complete the build. The block is not finish honed; the valve seats are installed and unfinished; and the rotating assembly needs to be balanced. Here are the parts included in this kit: * BOSS 302 cast iron engine block (not assembled) * Cylinder head stud kit (M-6014-Z304) * 302/351W Z-Head aluminum 63cc cylinder head with 7mm valves (M-6049-Z304D7) * Z304 Valve pushrod guide plates (M-6566-Z304) * Valve spring locators * Valve spring retainers * Valve stem seals * 289/302/351W front timing chain cover (M-6059-D351) * High-strength scat forged steel 3.40 in. stroker crankshaft(M-6303-C340) * 302/351W double roller timing chain and sprocket set; cast iron gear (M-6268-A302) * 302/351W performance crankshaft damper (M-6316-D302) * 289/302/351W polished Circle Track valve cover set (M-6582-CT2) * 289/302 high-volume oil pump (M-6600-D2) * 289/302 heavy-duty oil pump driveshaft (M-6605-B302) * 302/351W maximum flow aluminum water pump (M-8501-F351) * 289/302 Edelbrock single plane "Victor Jr." intake manifold (M-9424-D302) * Camshaft bearings (M-6261-J351) * Distributor hold-down clamp (M-12270-A302) * Fuel pump eccentric (M-6287-B302) * 289-302 SB oil pan reinforcement rails (M-6674-302) * 302 one-piece rear main oil seal (M-6701-B302) * Washer-crankshaft damper * Washer-crankshaft sprocket * Crankshaft damper bolt * Main cap stud-oil pickup tube * Timing pointer * Oil pump gasket
Not Yet Reviewed
$8,136.99
Brodix CNC-ported PB 1200 cylinder heads for big block Chevy will provide your race engine with some big-time power. They are equipped with 12 degree valve angles and raised, oval-shaped intake ports, which are designed to achieve a delicate balance between horsepower and torque. They also feature precision-contoured shallow chambers with outstanding wet flow characteristics. The PB 1200s are 100 percent CNC-ported to ensure accuracy. The heads also feature A-356 virgin aluminum alloy, phosphorous bronze valve guides, and your choice of copper or ductile iron valve seats.
Not Yet Reviewed
$5,816.99
If you're serious about quality and workmanship, top your small block Chevy with 18 C Series cylinder heads from Brodix. These heads have an 18 degree valve angle that will work well on your dirt late model or high performance drag racing application. Interlocking valve seats are installed along with replaceable phosphorous bronze guides, and the C Series has two exhaust bolt patterns available. Brodix offers these cylinder heads bare—or packaged with intake and exhaust valves, valve springs, retainers, locks, seals, and rocker studs. Brodix 18 C Series features include: * 5 degree intake flange * 18 degree standard or spread port exhaust * Flows over 390 cfm when CNC-ported * 58/107 valve spacing * A-356 virgin aluminum, which is easily repaired
Not Yet Reviewed
$6,188.99
Ford Performance Parts D347SR spec engine kits contain the unique components to build your sealed Circle Track long block with 11/32 in. valves. You will need to buy other readily available aftermarket parts to complete the build. The Boss 302 block is not finish honed, the valve seats are installed and unfinished, and the rotating assembly needs to be balanced. Start your competition build with a good foundation--Ford Performance Parts D347SR spec engine kits.
Not Yet Reviewed
$8,084.99
Quicksilver partially dressed crate engines are value-packed alternatives to purchasing a complete new engine if the engine to be repaired has internal damage, but the dress components are in good condition. They are major assemblies that include a new (not rebuilt, remanufactured or reconditioned) long block, as well as the fuel delivery and ignition components required for a high-quality major repair. The partial engine assembly is completed by reusing many components from the engine being repaired, or those components must be purchased separately. The foundation of every Quicksilver crate engine is a new iron block cast to Quicksilver's specifications and designed expressly for marine duty. Thicker castings ensure quieter operation and better durability in saltwater when compared to a standard automotive block. They feature Black-X composite valves that contribute to a 42 percent reduction in valve wear compared to traditional stainless steel valves with hardened seats, and smooth-flowing cylinder heads that deliver added performance. Some crate engines feature modern Multi-Port Fuel Injection (MPI) offering easier starts, improved fuel economy, and snappier throttle response. Quicksilver crate engines are universal power upgrades for Mercury MerCruiser sterndrive and inboard applications, and they're adaptable to other brands of sterndrives and inboards regardless of make. Select the engine desired for your build.
Not Yet Reviewed
$8,354.99
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$10,925.99
The Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.
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$5,128.95
These Summit Racing™ top end Pro Packs are guaranteed to give your engine a shot in the arm. We have taken out the guesswork and matched up all of these components for maximum bolt-on power, right out of the box. Get one of these Summit Racing™ top end Pro Packs and put your motor on track for some serious horsepower. Features include: * Pair of cylinder heads that will outflow your stock heads * Head bolts * Intake manifold * Intake gaskets * Intake bolts
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$6,972.87
Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.
Not Yet Reviewed
$6,391.95
Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.
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$5,598.95
AFR 385cc Magnum BBC competition racing heads will feed your large displacement, high-rpm race engine the air it needs to deliver monster performance. The 385cc Magnum features AFR's trademark .750 in. thick head deck, A356 aluminum castings and Titanium retainers, as well as 100 percent CNC-ported intakes, exhausts, and combustion chambers to deliver the big flow characteristics to provide you with the power you need to win! Keep your monster engine both strong and powerful—allow it to feast on the plentiful airflow of the AFR 385cc Magnum BBC competition racing heads.
Not Yet Reviewed
$5,344.50
Carefully tuned by Trick Flow® engineers to deliver optimum horsepower and torque on a big block Mopar 440, these PowerPort top-end engine kits save you cash and take the guesswork out of designing a winning engine combo. Each kit is built around a set of dyno-proven PowerPort 240 cylinder heads and includes a Track Max® hydraulic roller camshaft, a Track Heat® intake manifold, 1.6 ratio roller rocker arms with shafts and hold-down bolts, MLS head gaskets, a cylinder head bolt kit, and an intake gasket set with valley pan.
Not Yet Reviewed
$5,379.90
The Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.
Not Yet Reviewed
$5,011.95
If huge horsepower is what you are searching for, AFR 357cc Magnum aluminum cylinder heads will certainly deliver. With AFR's fully CNC-ported 357cc heads flowing 425 cfm, they represent the ultimate in airflow for your big block Chevrolet. These cylinder heads were targeted at larger cu. in. engines (509-632 c.i.d.) looking for maximum horsepower and rpm capabilities with a primary operating range of 3,500-8,000 rpm (this range is an average and will vary with engine displacement and component selection). These aluminum heads also provide impressive torque figures at higher rpm levels. Blown, turbo, and nitrous engines will especially like the larger, higher flowing intake ports. AFR 357cc Magnum BBC cylinder heads will work best with camshafts exceeding 0.750 in. gross valve lift to make better use of the substantial airflow found in the higher lift range. The AFR 357cc heads come standard with AFR's trademark 3/4 in. thick cylinder head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.300 in. intake and 1.880 in. exhaust valves. The AFR's fully CNC-ported 357 heads come with a 121cc chamber and are available with an optional 114cc combustion chamber as well. Order the cylinder head model suited to your needs.
Not Yet Reviewed
$5,184.90
If you're looking for serious street/strip performance from your one-of-a-kind custom vehicle, then these Trick Flow® PowerOval® 280 Fast As Cast® top-end engine kits for big block Chevrolet engines are just what the doctor ordered. Featuring Trick Flow® PowerOval® 280 heads with 113cc combustion chambers, these top-end engine kits were designed to give your engine the best possible components for excellent low and midrange torque and horsepower. For serious pavement-pounding power, choose these Trick Flow® PowerOval® 280 Fast As Cast® top-end engine kits for big block Chevrolet. Top end kits include: * 2 Trick Flow® PowerOval® 280 cylinder heads * Trick Flow® Track Max® hydraulic roller camshaft with 0.600 in. of intake and exhaust valve lift * Hydraulic roller lifters * Chromoly pushrods * Roller rocker arms with a 1.7 ratio * Billet steel timing set * Cylinder head bolts * Gasket set
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$5,020.90
Get the most out of your Ford 4.6L 2V with Trick Flow® Twisted Wedge® top-end engine kits. Each kit is carefully tuned to deliver the right amount of horsepower and torque. Take the time and guesswork out of designing a winning combination and save some hard-earned cash. Twisted Wedge® top-end engine kits for Ford 4.6L 2V are built around a set of dyno-proven Twisted Wedge® cylinder heads with 185cc intake runners and your choice of 38cc or 44cc CNC-profiled and bowl-blended combustion chambers. You also get a hydraulic roller camshaft set, matching followers, lash adjusters, timing chains, a valve spring compressor tool, and intake and head gaskets.
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$5,001.75
Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.
Not Yet Reviewed
$6,722.95
Bolt one of these complete Brodix top-end packages for Chevy onto your short block for the potent tune-up performance you expect--without the wasted time and hassle of assembling all of the various components on your own. The experts at Brodix Cylinder Heads have done the legwork for you, providing quality heads, plugs, gaskets, covers, and hardware in one convenient kit. Brodix top-end packages include: * Fully assembled Brodix cylinder heads * Spark plugs * Head gaskets, intake gaskets, exhaust gaskets, carburetor gaskets, and valve cover gaskets * Valve covers with studs and nuts * Head bolts and washers * Intake bolts and washers * Available with single or dual-plane intake manifolds * Free Brodix hat
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$5,185.99
Mast Motorsports offers Black Label cylinder heads for a variety of Chevrolet small block LS and LT engines from the late 1990s and up. The aluminum rectangular or cathedral port heads are available bare or assembled in a wide range of combustion chamber volumes, intake and exhaust valve sizes, and other options. The Mast cylinder head product line is completely manufactured from a raw casting to a finished cylinder head. Mast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality. You're assured of getting the highest level of quality and performance on the market. Examine the specs and select the Black Label cylinder heads recommended for your application.
Not Yet Reviewed
$5,540.00
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$5,900.00
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