Engines & Components
Availability
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your daily driver.
Showing In Stock Items. Show All 51 Items.
These COMP Cams Ultra Gold ARC Series aluminum break-in rockers are designed with a lower-than-stock ratio to help break in new Chevrolet V8 big block applications. They are engineered to eliminate excess open spring pressure, making them a must-have for the break-in process. If you have a new big block to break in, no other cams will help you do the job better than these COMP Cams Ultra Gold ARC Series aluminum break-in rocker arms.
Not Yet Reviewed
$50.95
—
$524.95
COMP Cams aluminum roller rocker arms are made from a high-quality alloy, anodized for durability and good looks. They have needle-bearing trunnions to allow for high valve spring loads (over 350 lbs.) and a tensile strength of 80,000 psi. While these rockers are more expensive than COMP Cams High Energy or Magnum rockers, they're a great choice for any race application.
Not Yet Reviewed
$53.95
—
$1,417.95
Finally, you can get high performance without a high price with COMP Cams High Energy diecast aluminum rocker arms. COMP Cams is a leader in valvetrain technology and has developed these High Energy rockers to provide a superior strength to weight ratio to withstand the hardships of your street performance and mild race engines, while adding valve lift. These diecast aluminum, larger-than-stock rocker bodies are designed to be stiffer and more durable. They feature needle-bearing fulcrums and roller tips to reduce friction and lower oil temperatures for even more horsepower potential. Maybe you're on a budget, or maybe you just appreciate getting the most for your coin; make an affordable choice without sacrificing performance--get COMP Cams High Energy diecast aluminum rocker arms.
( 218 )
$24.95
—
$270.95
Designed specifically for high performance street and race engines, COMP Cams Ultra Gold ARC Series aluminum rocker arms are precision CNC-machined to strict tolerances. They incorporate modern technology and design features to create the most advanced aluminum rocker arms available. Proven to withstand extremely aggressive spring pressure, the COMP Cams Ultra Gold ARC Series aluminum rocker arms use their CNC-machined aluminum design for high quality and the ultimate in ratio accuracy.
( 112 )
$41.95
—
$1,626.95
COMP Cams shaft mount aluminum rocker arms are one of the most cost-effective ways to increase horsepower. These shaft rockers were designed using the latest in computer software and engineering. They center the roller tip over the valve tip at the correct time so that the roller tip is never more than 0.020 in. off-center of the valve tip. At the greatest load point, the roller tip contact is on the center of the valve. At valve closing, the roller tip contact is slightly behind the valve centerline. When the valve is at full open, the tip contact is slightly behind the centerline of the valve. The results are more horsepower and better performance.
( 1 )
$1,583.95
—
$3,021.95
COMP Cams is proud to offer the finest stud girdles on the market. These stud girdles will tie your studs together, as well as keep them in line.
( 23 )
$211.95
—
$432.95
COMP Cams Ultra Gold stud girdles are constructed from lightweight 6061-T6 aluminum and are anodized for excellent durability. These one-piece, solid bar stud girdles tie your rocker studs together and locate them in the proper position.
( 1 )
$297.95
—
$306.95
COMP Cams Ultra Pro Magnum rocker arm and magnum pushrod kits feature a web-like design that delivers increased strength and rigidity, while still reducing the moment of inertia and optimizing the dynamic balance. They have a unique black oxide finish to help prevent corrosion and increase durability. They also have precision-sorted needle bearings and hardened roller tips for the ultimate in performance and dependability. If you're looking for a set of rocker arms that is so strong that the bodies are guaranteed to never break, then these COMP Cams Ultra Pro Magnum rocker arm and magnum pushrod kits are what you've been waiting for.
Not Yet Reviewed
$611.95
COMP Cams Pro Magnum shaft mount roller rocker arms combine the strength of 8650 chromoly steel and the weight savings of aluminum rockers. COMP Cams took advantage of computer design to simulate the stresses that affect rockers under various operating loads. This allowed the engineers to lessen the rockers' mass at non-critical areas and strengthen the areas that take the most punishment. The results are rocker arms that are strong where they need to be and actually weigh 5 percent less at the valve than comparable aluminum rockers.
( 30 )
$79.95
—
$948.95
COMP Cams Pro Magnum roller rocker arms combine the strength of 8650 chromoly steel and the weight savings of aluminum rockers. took advantage of computer design to simulate the stresses that affect rockers under various operating loads. This allowed the engineers to lessen the rockers' mass at non-critical areas, and strengthen the areas that take the most punishment. The results were rocker arms that are strong where they need to be, and actually weigh 5 percent less at the valve than comparable aluminum rockers. This means more RPM and valve train stability.
( 16 )
$249.95
—
$255.95
COMP Cams rocker arm adjusting nuts are designed for the ultimate in strength and locking force. They are precision-ground for minimum runout and are tapered for extra strength in the locking area. The special alloys in the polylocks ensure a quality and strength not found in any other competitive products.
( 138 )
$8.95
—
$60.95
Replace your stock rocker arm studs with these COMP Cams rocker arm studs. When ultimate strength is required, as with high-rpm roller cam applications, Hi-Tech Race studs are just what you need. These studs have thin jam nuts for rocker clearance, rolled threads for maximum contact, and ground-flat tops to achieve and maintain accurate valve adjustments. The jam nuts are large in diameter to spread the load over larger areas. All COMP Cams Hi-Tech studs have generous radii and feature a black oxide finish.
( 23 )
$18.95
These COMP Cams LS1 Gen III aluminum shaft rockers are CNC-machined for accuracy and precision alignment. They feature pressurized internal oiling to ensure long life and reduced friction. These rockers require minor valve cover machining and deliver the adjustability needed by most performance modifications.
Not Yet Reviewed
$1,623.95
—
$1,705.95
COMP Cams rocker arm replacement components consist of necessary items like rocker arm stands, retaining rings, adjusting nuts, screws, pedestals, shafts, bearings, trunnions, and bolts. These items are essential to proper rocker arm maintenance and performance. Order the parts needed for your vehicle application.
( 1 )
$14.95
—
$65.95
Howards Cams Maximum Effort stud girdle kits are designed to increase the strength and rigidity of rocker arm studs by eliminating flex and thereby ensuring true rocker arm ratios. These stud girdles are made from the highest quality aluminum and include locking hex head adjusters. Howards Cams aluminum stud girdle kits are a must for all competition engines not using shaft rockers.
( 24 )
$269.99
—
$377.99
The unique full body design of these Howards Cams billet aluminum rocker arms offers less flex and will withstand 800-plus lbs. of spring pressure at over .800 in. lift. These rockers are 100 percent CNC-machined and are designed for more retainer and spring clearance than most other brands. They feature needle-bearing fulcrums and roller tips, centerless ground trunnions, centerless ground pins and rollers, and thick-walled adjusting nuts.
( 44 )
$34.99
—
$399.99
Howards Cams Maximum Effort stud girdles are designed to increase the strength and rigidity of the rocker arm studs by eliminating flex and thereby assuring true rocker arm ratios. They are made from the highest quality aluminum, anodized purple, and are spring loaded for easy removal. Howards Cams Maximum Effort stud girdles are a must for all competition engines not using shaft rockers. These kits include locking hex head adjusters.
Not Yet Reviewed
$274.99
The most popular crate engine size just got better and easier with Ford Performance Parts X2347 Street Cruiser dressed long block crate engines. The proven 347 stroker combination has been optimized for street cruising with a perfectly matched cam/cylinder head/intake manifold/carburetor combination that runs on pump gas. Guesswork and installation issues are eliminated with a complete intake and distributor package that has been developed and tested by Ford Performance engineers. The X2347D engines are hand-assembled and dressed out with the best aftermarket performance parts translating into 360 hp and 400 lb.-ft. of torque at the crank! Ford Performance X2347 main features: * 4.030 in. bore and 3.400 in. stroke * Boss 302 8.2 in. deck height block * SCAT forged steel crankshaft * SCAT forged steel I-beam connecting rods * Forged Mahle pistons with floating wrist pins * Ford Performance aluminum, 64 cc chamber cylinder heads * 1.94 in. intake valves, 1.54 in. exhaust valves * 9.6:1 compression ratio * Edelbrock Performer RPM Air Gap manifold * Holley Street Avenger 570 cfm carburetor * 1.6:1 ratio roller rocker arms * Ford Racing black satin aluminum valve covers * MSD billet distributor * Ford Racing 9mm black spark plug wires * Hydraulic roller Comp Cams .533 in. lift intake and exhaust with 206 degree duration intake and exhaust at .050" lift * Double roller timing chain set * Ford Racing SFI-approved harmonic damper * High performance front or rear sump 7-quart capacity oil pan with windage tray and scraper * Maximum recommended rpm: 6,000 rpm * Internal balance; use neutral balance flywheel
Not Yet Reviewed
$14,029.71
ATK High Performance Pro Street 632 c.i.d. 800 hp completely dressed crate engines are sure to turn heads! Hand built; they are stuffed with name brand quality components you can trust to ensure performance. Engine specifications: * Block: Dart Big M 10.2 deck, 4-bolt main, 2-piece seal * Bore/stroke: 4.600 in. x 4.750 in. * Displacement: 632 * Crankshaft: Scat 4340 forged internal balance * Rods: Scat 4340 forged H-beam with ARP 8740 bolts * Pistons: Forged 10.3:1 compression * Rings: Moly * Camshaft: Hydraulic roller * Cam specs: 267/277 at 50 .680 intake/.680 exhaust 110LSA * Timing chain: Double roller * Cylinder heads: Dart Pro 1 aluminum 121cc/345cc 2.300/1.880 * Rocker arms: Howards billet aluminum 1.7 roller rockers * Oil pan: Moroso 7 qt. street/strip pan with windage tray * Oil pump: Melling high volume * Balancer: Power Bond SFI 7.950 in. * Intake manifold: Edelbrock Super Victor * Distributor: Pro billet (iron gear) * Carburetor: Quick Fuel 1150 cfm mechanical secondary * Spark plugs: Autolite #3934 * Spark plug wires: 8mm
Not Yet Reviewed
$16,499.99
Clearance
ATK High Performance Chrysler 5.7 Gen III Hemi 400 hp long block crate engines were built in a team effort with Comp Cams. Utilizing ATK remanufactured GEN III 5.7L Hemi engines; they upgraded the camshaft, springs, and pushrods to produce reliable 400+ hp. Features typically include: * Seasoned OE Gen III Hemi block * OE reground crankshaft * OE reconditioned connecting rods * Hypereutectic pistons * Chromoly piston rings * Hydraulic roller camshaft * Aluminum cylinder heads * OE shaft mount rocker arms
( 4 )
$4,798.99
$4,299.50
—
$4,798.99
Briggs & Stratton Junior 206 crate engines are made tough! Each engine is hand-assembled in-house using tooling and dies specifically made for racing--for unparalleled repeatability. The factory-sealed long blocks include a ground cam and controlled piston pop-up (reducing compression variance). They're a simplified IKF/WKA rule set designed to maintain a stock configuration, right down to the factory carburetor jets. These 206 race engines are powerhouses! Briggs & Stratton Junior 206 race-only crate engine specs and features: * Primary use: for karting, high school/collegiate Supermileage Competitions * Reinforced, cast iron sleeved, dual ball bearing racing cylinder * Single cast, custom aluminum alloy cylinder head with high-flow intake port, custom seat/guide material * Squeeze cast, T-7 heat-treated aluminum rod with reinforced I-beam * Carbon steel crankshaft with induction-hardened, micro-polished, crankpin-reinforced timing gear * Cam ground, barrel faced, eutectic alloy piston with 3-piece ring set with chrome faced top ring * .255 max. lift ground cam with nitrited lobes and built-in mechanical compression release * High-silicon, racing-engineered valve springs for seasons of racing * High-grade stainless steel, dished valves with nitrited exhaust * 3-piece, automotive-style keepers and reinforced rocker arm and lock ball * PVL digital ignition with built-in 4,100 rpm rev limiter * PVL steel hub, cast aluminum flywheel * Briggs & Stratton tooled 22mm round slide, fully adjustable jet carburetor * Custom graph oil composition head gasket * Max Torque clutch, driver, and installation kit * Green premium air filter * Carburetor locking cap
( 1 )
$759.00
You won't go broke finishing off your project car with this 350 Vortec c.i.d. HO turn-key crate engine from Chevrolet Performance! It's packed with all the features you need to get a reliable 330 hp and 380 lbs.-ft. of torque from a dependable, time-tested combination of GM Performance Parts. Of course, all the components used in this engine are brand new, not remanufactured parts like the competition is trying to sell you. Designed by GMPP's in-house engineers to give you maximum return for your hot rod dollar, the 350 HO Turn-Key is a great choice for your small-block crate engine needs. The 350 HO is based on a tough, Chevy 4-bolt block that holds a strong nodular iron crankshaft, good rods, and aluminum pistons. The high-lift camshaft gives the engine its own unique, aggressive idle. The cam is based on the same one found in 1965-67 Corvette 327 engines, but with more lift and duration. More product features, items, and specifications include: * Power - 330 hp at 5,000 rpm, 380 lbs.-ft. of torque at 3,800 rpm * Displacement - 350 c.i.d., 5.7L * Bore x stroke - 4.000 in. x 3.480 in. * Compression ratio - 9.0:1 * Recommended fuel - 92 octane * Block - cast Iron, one-piece rear seal, 4-bolt main caps * Crankshaft - nodular iron * Connecting rods - powdered metal steel * Pistons - cast aluminum * Camshaft - hydraulic flat tappet * Cam lift - 0.435 in. intake / 0.460 in. exhaust * Cam duration at .050 in. - 212 degrees intake / 222 degrees exhaust * LSA (Lobe Separation Angle) - 112.5 degrees * Cylinder heads - Vortec cast iron, 3/8 in. pressed-in rocker studs * Combustion chamber - 64cc * Valves - 1.940 in. intake/ 1.500 in. exhaust * Rocker arms - stamped steel, 1.5:1 ratio * Valve springs - 10212811 * Balance: external * Maximum GM recommended RPM - 5,500 * Ignition timing - base 10 degrees BTDC, 32 degrees total * Fully GM assembled long block * Chrome steel valve covers with Chevy Bowtie logo * Oil pump, pick-up and oil pan * Front timing cover * Passenger side RH oil dipstick and tube
( 1 )
$6,355.11
Summit Racing™ precision cast cylinder heads are made from tough A-356 aluminum alloy and feature Permanent Mold "As-Cast" technology. Port accuracy is unrivaled--meaning CNC porting is not required to provide superior flow. The result is CNC-ported performance at a fraction of the price! We start with precision CNC-finished faces and bolt holes for accuracy and fitment. American craftsmen expertly size and install the manganese bronze valve guides and interlocking ductile iron seats before finishing with a competition-grade valve job. From there, the decks are given a final pass for superior finish. They are finish-assembled in the USA with top-quality components like PAC Racing springs, fasteners, one-piece 21 4N stainless valves, machined locks, Viton® seals and chromoly steel retainers. The final result is the performance you want and Summit Racing™ quality you TRUST!
( 11 )
$624.99
—
$639.99
Do you need a replacement engine for your boat? Try one of these BluePrint Engines marine GM 383 c.i.d. 405 hp stoker long block crate engines to get the job done. They feature quality-built components designed for marine use. BluePrint engines are built for speed on the open water, performance, and reliability, all in one package. Block: * 4-bolt main block * Passenger side dipstick * 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: * SCAT cast iron crankshaft * Keith Black hypereutectic pistons * GM heavy beam connecting rods * Hastings moly rings * Balanced rotating assembly * Melling high-volume oil pump * COMP Cams roller lifter camshaft * Heavy-duty double roller timing set Cylinder heads: * Cast iron Vortec heads * Hardened retainers and springs * 2.02 in. swirl-polished intake valves * 1.60 in. swirl-polished exhaust valves * Hardened pushrods * Brezinski cast iron marine intake manifold * 9.5 to 1 compression * BluePrint Signature Series polished aluminum valve covers * Rubber coated steel oil pan * Chrome timing chain cover * Long slot rocker arms with positive locking nuts * Dyno-tested--and shipped with results
( 1 )
$7,199.00
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
