Availability
March Performance Chevy Small Block "Ultra Drive" custom serpentine kits are designed for mounting accessories below the valve covers and in-between the width of the heads. These kits are a low-cost alternative to the Deluxe and Ultra Series that give up nothing in performance. Their components are precision CNC-machined from 6061-T6 aluminum for strength and perfect fit. The pulleys will not fracture like common cast pulleys, since they have high tensile strength for much longer wear—and are hard-coated for extra durability. Custom kits feature: * Sanden air conditioning compressor * 140 amp alternator * GMB aluminum reverse rotation water pump * Maval Type 2 power steering pump (except where noted) * Dayco spring loaded tensioner * Air conditioning bracket * Alternator bracket * Billet power steering bracket (except where noted) * Crank pulley * Hard-coated water pump pulley with fairing * Alternator pulley with machined fan * Power steering and tensioner pulleys * Wing cross emblem * Air conditioning line fittings * Grade 8 mounting hardware * Some models include power steering pump
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$2,006.99
March Performance Chevy Big Block "Ultra Drive" custom serpentine kits are designed for mounting accessories below the valve covers and in-between the width of the heads. They're a low-cost alternative to the Deluxe and Ultra Series that give up nothing in performance. These components are precision CNC-machined from 6061-T6 aluminum for strength and perfect fit. The pulleys will not fracture like common cast pulleys, since they have high tensile strength for much longer wear—and are hard-coated for extra durability. Custom kits feature: * Sanden air conditioning compressor * 140 amp alternator * Edelbrock aluminum reverse rotation short water pump * Maval Type 2 power steering pump (except where noted) * Dayco spring loaded tensioner * Air conditioning bracket * Alternator bracket * Billet power steering bracket (except where noted) * Crank pulley * Hard-coated water pump pulley with fairing * Alternator pulley with machined fan * Billet power steering and tensioner pulleys * Wing cross emblem * Air conditioning line fittings * Grade 8 mounting hardware * Most components available in clear or black powdercoat finish
Not Yet Reviewed
$2,086.99
Callies Ultra connecting rods are made with pride to exacting specifications. They are produced from extremely clean Timken steel, meticulously crafted with great attention to detail. If you choose Callies Ultra connecting rods, be confident of dependable performance and outstanding workmanship.
Not Yet Reviewed
$2,464.00
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$3,240.00
Crankshafts are the most critical part of your engine's performance. Crower Standard Series crankshafts help to provide the best possible performance for your application, matching your head and valvetrain components to perfection. Made of forged 4340 steel for superior performance, they are available with internal and external balance. These crankshafts have numerous designs to meet anyone's needs, whether it's a smooth, lower lift rate for higher rpm and more durability, needing less spring pressure and less valvetrain modification, or a higher lift rate for less rpm with more spring pressure and lighter valvetrain components, providing the explosive power typically needed in race applications. So, if you're looking for a high performance crankshaft and want nothing but the best, these Crower Standard Series crankshafts are your answer.
Not Yet Reviewed
$4,767.99
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$5,495.99
Crower billet crankshafts offer premium quality at not-so-premium prices. Crower manufactures these from milled round bars to produce steel billet crankshafts for just about any engine make and horsepower needs. Premium materials--either billet 4340 chromoly or EN30B steel--are used to create their cranks. They are precision CNC-machined on state-of-the-art equipment by master craftsmen for precise indexing and throw-to-throw consistency. Choose a better made billet crankshaft from Crower and choose peace of mind.
Not Yet Reviewed
$3,913.99
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$5,107.99
For those of you that feel most confident running a steel-based valve train, look no further than the collection of Crower stainless steel shaft-mounted rocker arm systems. Every configuration has been rigorously scrutinized to offer extreme rigidity and accuracy while optimizing the moment of inertia phenomena condition. Crower engineers made ease of installation and maintenance a top priority--so you'll never waste a moment when time is critical at the track. These stainless steel shaft rocker systems are a perennial favorite of dirt late models and marine endurance competitors. Sustained high temperatures have little effect on the strength properties of stainless steel so components made from this material typically have a longer life expectancy than similar components made from aluminum. All Crower shaft mount rocker arms are available with Crower's needle bearing roller tip option. They greatly reduce friction for added horsepower and decreased valve guide and valve stem wear. The lighter tips deliver greater valve control for increased rpm and improve valve spring longevity by decreasing heat compared to traditional non-needle designs.
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$2,375.99
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$2,886.99
Callies Ultra Enforcer connecting rods are produced from extremely clean TimkenSteel product that is formulated to exact specifications. This proprietary steel is forged in Trenton, Michigan, and manufactured 100 percent in Callies' Fostoria, Ohio facility. Pride in workmanship and attention to detail are qualities you'll discover during careful examination of the finished products. Each step of the manufacturing history of every Ultra connecting rod is meticulously maintained by the Callies manufacturing team. You can be confident of the material and workmanship of these quality components. Designed with fortified tower flanges, Enforcer I-beam connecting rods are the ideal component for turbocharged and supercharged engines. Order the model recommended for your vehicle. Standard features: * Produced from clean 4330V TimkenSteel product * Intended for boosted applications * Buckle resistant I-Beam design * Increased mass, pressure Angle Arches, guarantee wrist pin stability * Robust tower flanges provide enhanced resistance to bend and twist * 2,400 hp per cylinder capability * L-19 bolts, Multi Phase 3.5 available
Not Yet Reviewed
$2,440.00
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$2,640.00
These Crower Enduro crankshafts will handle the horsepower of today's engines. They feature a 4340 NT forging, straight shot oiling, jumbo 1/8 in. radii, and a counterweighted correct design. The heat treating of the Crower Enduro crankshafts makes them stronger and more reliable throughout the entire rpm range. Available in your choice of 2 or 4 lightened holes, Crower Enduro crankshafts are an excellent foundation for your performance engine.
Not Yet Reviewed
$5,506.99
Carrillo Pro-SA connecting rods cover the middle ground between their Pro-H and Pro-A rods. Super A-beams have an increased beam thickness to handle higher load capacities than the regular A-beam rods and are built to the same stringent tolerances as the Pro-H rods. Crafted from robust steel that's forged, heat-treated, shot-peened, and inspected through the entire manufacturing process, these rods are highly effective. Select materials, high-tech design, and rigorous testing make Carrillo Pro-SA connecting rods proven winners and your connection to victory lane.
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$2,461.20
The perfect foundation for your Boss engine--Ford Performance Parts Boss 302 engine blocks! They're built stronger than the originals to make your high performance build a success. Designed as replacements for the legendary Boss 302 and Boss 351 blocks, they use the latest technology and manufacturing techniques. Cast from diesel-grade iron with siamesed bores, thick cylinder walls and decks, Boss block strength is far superior to any Ford production block. Boss 302 blocks are available in standard and Big Bore versions that support engine sizes up to 363 c.i.d. Proven around the world, both on the track and on the street; all Ford Performance Boss 302 blocks are cast and machined to the highest industry standards in the USA. Features include: * Big Bore version features 4.125 in. bore capacity, finished at 4.115 in. rough bore * Standard bore version is finished at 3.990 to 3.995 in. rough bore with 4.125 in. bore capacity * 8.2 in. deck height, finished at 8.200 in. plus .010 to .015 in. * Optimized cylinder wall length for stroker applications up to 3.5 in. with no grinding or clearancing (depends on crank/rod manufacturer) * Splayed 4-bolt mains on 2, 3, 4, main caps * 2-bolt main on first and fifth main caps * Main bearing bores finished to low limit * Finished lifter bores * Machined to accept factory roller lifter guides and lifter guide retainer * Fits factory 1979-95 Mustang oil pan with custom oil pickup tube, part number: M-6622-BOSS302 * NASCAR inspired front oil feed on both lifter galleys * Revised cooling system passageways * Increased bulkhead material * Threaded core and galley plugs (straight thread port plugs with O-ring) * Require special length 1/2 in. head bolts M-6065-BOSS or head studs M-6014-BOSS recommended with M-6049-X306/307/Z304DA heads * Designed for M-6049-X306//X307/C3/D3/Z304DA cylinder heads * Not designed for production 302/351W or M-6049-Y302/Y303/X302/X303/X304/X305 cylinder heads * Uses common O.D. cam bearings M-6261-J351/R351 * Unique cam plug M-6026-S351 included * M-6051-S331 or M-6051-CP331 head gasket recommended * Uses stock-type timing cover (M-6059-D351 recommended; includes fuel pump provision) * Retains clutch cross shaft pivot hole * Original-style oil filter location * Original motor mount boss locations * Original bell housing pattern * Approximate weights: Big Bore 163 lbs.; standard bore 175 lbs.
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$2,265.99
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$2,445.99
Clearance
Satisfy your craving for horsepower with BluePrint 347 c.i.d. 415 hp dressed stroker long block crate engines are meticulously-built Blue Oval engines from a solid, reputable company that does the job right and stands behind their work. BluePrint custom-built crate and stroker performance engines are always balanced and dyno-tested to add a lot of muscle to your fun! Plus, they're shipped with the dyno results so you can see the BluePrint difference! So, where will you get your horsepower from? Block: * New BluePrint cast iron block * Square and parallel decked * Align-honed main bearing bore * Cylinders honed on computer-controlled machine to within .0002 in. straightness and roundness * Cylinders are sonic tested for thickness Rotating assembly: * New cast steel crankshaft * New rods with 150,000 psi bolts * Forged pistons * Moly rings * Balanced rotating assembly * High-volume oil pump * Hydraulic roller camshaft * Heavy-duty, double-roller timing set Cylinder heads: * Aluminum heads * Swirl-polished intake and exhaust valves * Hardened pushrods Plus: * Dual plane, satin aluminum intake manifold * Carburetor * Distributor * Valve covers * Painted oil pan
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$6,944.44
$4,859.50
PROMAXX Performance Maxx Series big block Chevy cylinder heads are custom designed to satisfy demands of the big block Chevy world, while retaining high-quality craftsmanship and reasonable prices. Available assembled or bare, these heads feature ultra-smooth 356 T-6 aluminum castings with hand-blended valve bowls, efficient chamber designs, 5-angle valve jobs, and diamond-honed bronze valve guides. Assembled heads include 21-4N swirl-polished valves, springs, retainers, 7/16 in. rocker studs, guide plates, and seals. Level up your ride with a pair of PROMAXX Performance Maxx Series big block Chevy cylinder heads.
Not Yet Reviewed
$2,144.00
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$2,879.00
With ATK High Performance Chevy LM7 5.3L 385 hp long block crate engines expect big mid to upper end power and a noticeable idle. They were designed to be performance upgrades for a 1999-2007 Chevy truck LM7 or an LS swap in a hot rod. Technical specifications include: * Horsepower: 385+ * Torque: 390+ * Block: GM 5.3L iron LM7 * Bore/stroke: Up to 3.809 x 3.622 * Year range: 1999-2007 * Displacement: 323 c.i.d. * Crankshaft: OEM GM 3.622 in. stroke internally balanced 24 tooth reluctor wheel .857 in. flange * Connecting rods: OE GM forged powder metal 6.093 in. stock bolts * Pistons: Hypereutectic dish * Piston rings: Moly rings * Compression ratio: 9.5:1 compression * Camshaft: Hydraulic roller * Camshaft specifications: Custom grind * Camshaft bearings: Installed and clocked to OEM position * Cylinder heads: OE aluminum 61.15cc 1.89/1.55 * Freeze plugs: Brass installed and sealed * Rocker arms: OE powdered metal 1.7 ratio * Oil Galley plugs: Installed and sealed * Weight: 385
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$4,189.99
Start your build with a rock-solid bottom-end with these ATK High Performance Chrysler 408 A Stroker short blocks. These short blocks are built using high-quality components that are all hand-fit and balanced to create a reliable bottom-end that's ready to get your musclecar or truck moving. Just top the engine off with your own parts to build a custom engine that is designed to meet your goals. These ATK High Performance Chrysler 408 A Stroker short blocks include the following: * Handpicked and seasoned OE Magnum 1993-2001 blocks * Aligned and hone main bores * Nodular iron internally balanced crankshaft * 4.00 in. stroke * 4340 forged I beam connecting rods with ARP 8740 bolts * Hypereutectic pistons with 23.5cc dish * Plasma-moly rings * Approximate Compression Ratios: 62cc = 9.7:1 / 68cc = 9.2:1 / 72cc = 8.9:1
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$2,998.99
Using only state-of-the-art equipment and advanced techniques, Scat is able to offer the automotive aftermarket World Class, race proven forged and billet crankshafts including the Pro Series big block post crankshafts. These Scat crankshafts are machined in-house using premium non-twist single plane 4340 forgings. Each Pro Series big block post crankshaft is skillfully machined, precision finished, ion-nitrided and also heat-treated for superior quality, extreme strength, and durability, and fully customized to your needs. Order the crankshaft designed for your application needs. Product features and details: * Manufactured from non-twist single plane 4340 forgings * Precision ground, heat-treated and Nitrided for superior wear-resistance * Straight shot and chamfered oil holes * Large radius on all journals * Lightening holes in all rod journals * Aero Wing counterweights * All popular engines, strokes, and rod sizes
Not Yet Reviewed
$3,055.99
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$3,071.99
Rely on Jesel Pro Aluminum Series shaft rocker arms to move you into the winner's circle. Their custom blended 7000 Series aluminum alloy allows for an extremely durable and lightweight valvetrain assembly with a tensile strength at 300 degrees to far exceed that of less expense, industry-standard 2024 alloys. Jesel Pro Series rocker arms have profiled rocker tails and clipped-pin nose rollers, and they are shot-peened for increased resistance to fatigue failures. They are offered in standard slot, Mohawk beam, and solid body styles, as well as different ratios individually and in sets. Features of Jesel Pro Aluminum shaft-mounted rockers: * Longer rocker arms provide higher rocker ratios * Proper travel arc geometry * Enough rocker-to-valve spring clearance to run big race springs * CNC-machined aluminum rockers are extra rigid to insure true rocker ratio * Shaft mounting reduces reciprocating mass for high rpm use * Easier access to valve springs, lash caps, retainers and locks * Longer valve spring life
Not Yet Reviewed
$2,075.00
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$2,390.00
Start your build with a rock-solid bottom-end with these ATK High Performance Chrysler 408 Mag Stroker short blocks. These short blocks are built using high-quality components that are all hand-fit and balanced to create a reliable bottom-end that's ready to get your musclecar or truck moving. Just top the engine off with your own parts to build a custom engine that is designed to meet your goals. These ATK High Performance Chrysler 408 Mag Stroker short blocks include the following: * Handpicked and seasoned OE Magnum 1993-2001 blocks * Aligned and hone main bores * 4340 Forged steel internally balanced crankshaft * 4.00 in. stroke * 4340 forged I beam connecting rods with ARP 8740 bolts * Forged pistons with 20.5cc dish * Approximate Compression Ratios: 62cc = 9.9:1 / 68cc = 9.5:1 / 72cc = 9.1:1
Not Yet Reviewed
$3,798.99
The Twin Cam 88A crankcases from S&S Cycle provide a stronger, more reliable, and more durable foundation for the engine, particularly in high-performance applications, addressing weaknesses in the previous Evolution engine. The Twin Cam 88A is intended to replace crankcases in HD® Twin Cam 88 engines in existing HD® chassis only. S&S stock style crankcases have a rear motor mount that bolts directly to the stock 1999-2006 transmission for all models except 2006 HD® Dyna. Known for their strength and durability, these crankcases are compatible with the stock primary, charging system, and other stock components. Stock bore cases are perfect for replacement applications, 4 in. bore cases are a natural for use with the S&S Super Sidewinder Hot Set Up kits, and 4 1/8 in. bore cases make really large displacement custom engines possible and are available with the S&S cylinder stud pattern or with the stock cylinder stud pattern. The 4 1/8 in. bore cases with stock stud pattern are ideal for the S&S 124 in. Hot Set Up Kit for stock crankcases. Select the Twin Cam 88A crankcase designed specifically for your HD® bike model.
Not Yet Reviewed
$2,152.95
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$2,182.95
High performance just got a lot easier and more affordable with S&S Cycle's CNC-ported B2 cylinder heads. In the past, S&S's B2 Special Application heads, that were used on the now legendary Tribute 145 engines, were often hailed as the best choice for very large displacement V-Twin engines. Now S&S Cycle offers CNC-ported B2 cylinder heads that are even better—providing added convenience, economy, and performance at the same time. Convenient, because they now fit 2008-later bagger front motor mounts and the new two bolt exhaust mounting flange is a lot easier to work with. Economical, because riders can use stock exhaust pipes, or existing 2 in. header systems. The increase in performance comes from increased flow of CNC-ported intake and exhaust ports. Heads features stock bolt pattern and require special pistons, intake manifold flanges, and pushrod length for installation. Features and benefits: * 106cc combustion chambers * Oval intake ports bolt up to S&S throttle Hog 70mm throttle bodies (2008-up touring applications) * Stock-style breather system—compatible with stock and aftermarket air cleaners * Large 2.200 in. intake and 1.800 in. exhaust valves * Machined for stock sensors—EFI friendly * .660 in. lift S&S valve springs with titanium top collars * Head kits include valves and valve springs * Requires special pistons, pushrods, manifold intake, intake flanges and seals, and an exhaust adaptor kit (sold separately) * Kits do not include gaskets, hardware, or intake and exhaust flanges (these parts must be purchased separately) Fitment: * S&S only stocks the late model 4 1/8 in. bore versions as off-the-shelf items, but heads for other applications and individual front of rear replacement heads available by special order only Possible options by Special Order: (final price varies depending on selected special option requests by customer) * Cylinder head sets without valves or springs individual front, or rear heads * CNC-ported intake and exhaust ports—more air, more power! * Two-bolt exhaust flanges—can accommodate stock exhaust headers, existing 2 in. headers, or build your own 2 in. exhaust system * Machined for 2008—later bagger front motor mount * 4 1/8 in. to 4 3/8 in. bore sizes * Stock 1999-up, S&S, or other cylinder stud patterns—other patterns subject to approval * Machined with or without S&S electric compression release * Choose from a variety of pushrod geometry machining styles * Choose from a variety of different chamber sizes * Individual front of rear heads available by special order * Available in wrinkle black, gloss black, silver, or natural
Not Yet Reviewed
$3,065.95
Ford Performance Parts Boss 351 c.i.d. engine blocks are based on Windsor 351 architecture with Cleveland-sized 2.749 in. main bearing journals. Available in two deck heights, 9.2 in. and 9.5 in., they feature 4-bolt main caps and screw-in freeze plugs. Technological improvements, such as splayed main bolts, siamesed bores with engineered coolant cross-drilling, front crossover lifter oiling, and diesel-grade iron with 41,000 psi tensile strength separate Ford Performance Parts Boss 351 c.i.d. engine blocks from both stock and aftermarket blocks. They can accept a maximum stroke of up to 4.250 in., depending on the crankshaft/connecting rod manufacturer, with a maximum bore size topping out at 4.185 in. (sonic check recommended). Features include: * Available in standard and Big Bore versions * Supports displacements up to 460 cubic inches * Splayed 4-bolt main on 2, 3, 4, main caps * 2-bolt mains on 1 and 5 main caps * Main bearing bores finished to low limit * Finished lifter bores * Machined to accept factory roller lifter guides and lifter guide retainer * Revised cooling system passageways * Increased bulkhead material * Threaded core and galley plugs (straight thread port plugs with O-ring) * Requires special length 1/2 in. head bolts M-6065-BOSS or head studs M-6014-BOSS recommended with M-6049-X306/307/Z304DA heads * Designed for M-6049-X306//X307/C3/D3/Z304DA cylinder heads * Not designed for production 302/351W or M-6049-Y302/Y303/X302/X303/X304/X305 cylinder heads * Use common O.D. cam bearings M-6261-J351/R351 * Unique cam plug M-6026-S351 included * Compatible with original 302 and 351W blocks * Designed to use stock type timing cover (M-6059-D351 with fuel pump provision recommended) * Fits factory Mustang oil pan with custom oil pick-up tube M-6622-BOSS302 * Retains clutch cross shaft pivot hole * Original-style oil filter location * Original motor mount boss locations * Original bell housing pattern * 9.2 in. deck height blocks weigh approximately 195 lbs. * 9.5 in. deck height blocks weigh approximately 205 lbs. * Great price and value
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$2,445.99
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$2,644.99
Edelbrock Big Victor 3 Pro-Port 11 degree cylinder heads are designed for high rpm, large displacement big block Chevrolet race engines. These heads are a unique departure from current spread port designs using instead the familiar Pro Stock style symmetrical port layout. These heads are semi-finished in that all machining on the valve axes has been omitted to allow custom designs with unique valve angles and positions. They are supplied with no combustion chamber and small ports to permit various port and chamber finishing options. All are also treated to a Hot Isostatic Pressing (HIP) process prior to heat treat and final machining. This process greatly improves metal density and tensile strength thus significantly extending their useable life.
Not Yet Reviewed
$3,061.95
CP Pistons Chrysler diesel piston and ring kits are forged from 2618 material with tapered pin bosses for increased strength and to match Carrillo's connecting rods. All pistons are hard anodized to withstand extreme heat and provide additional scuff resistance. Pistons come standard with a coated steel 1/16 or 2mm thick top ring, 1/16 or 2mm seconds, high-tension 3mm 2-piece oil ring, steel 5115 pins, .082 Kramm Lox, and radius oversized valve reliefs for increased valve lift. Available individually or in sets, choose the ones with the attributes needed for your Cummins. Key features: * Extra deep valve pockets * 100 percent hard anodized for improved heat and scuff resistance * Custom skirt design for less piston rock in the bore for improved wear—only requires a minimum piston-to-wall clearance on non-filled blocks * Forged side relief and milling for reduced weight * Large dish top radius and blended radius into pockets * Non-undercut radius bowl * Radius valve reliefs to reduce hot spots * Thicker 2nd land for additional strength and top ring support * Broached pin oilers for improved pin oiling and added strength over traditional forced pin oiling * Steel bushing
Not Yet Reviewed
$2,463.30
CP Pistons GM Diesel piston and ring kits are forged from 2618 material with tapered pin bosses for increased strength and to match Carrillo's connecting rods. All pistons are hard anodized to withstand extreme heat and provide additional scuff resistance. Pistons come standard with a coated steel 1/16 or 2mm thick top ring, 1/16 or 2mm seconds, high-tension 3.0mm 2-piece oil ring, steel 5115 pins, .082 Kramm Lox, and radius oversized valve reliefs for increased valve lift. Available individually or in sets, choose the ones with the attributes needed for your Duramax. Key features: * Extra deep valve pockets * 100 percent hard anodized for improved heat and scuff resistance * Custom skirt design for less piston rock in the bore for improved wear—only requires a minimum piston-to-wall clearance on non-filled blocks * Forged side relief and milling for reduced weight * Large dish top radius and blended radius into pockets * Non-undercut radius bowl * Radius valve reliefs to reduce hot spots * Thicker 2nd land for additional strength and top ring support * Broached pin oilers for improved pin oiling and added strength over traditional forced pin oiling * Steel bushing
Not Yet Reviewed
$3,284.40
R&M Specialties Quick Release valve covers are designed specifically for Big Block Chevy engines. Their patented, innovative high-tech design gives you a true quick-release removable top. With strong cam locking billet machined hinges, a heat resistant O-Ring insures a positive seal. No more time consuming bolts or stripped threads! Features include: * Quality cast aluminum construction * Custom machined to specifications * Strong cam locking billet machined aluminum hinges to allow ample clearance for all rocker arms and stud girdles * Heat resistant o-ring to insure a positive seal * Hand polished to a mirror finish
Not Yet Reviewed
$2,529.99
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