Engines & Components
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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.
URO Parts A/C belt tensioners and pulleys are designed and manufactured to withstand the impact today's worsening traffic conditions place on an engine and its air conditioning and accessory accessory drives. They are manufactured with premium materials and bearings to outlast other European brands … at a fraction of the cost of OE. Every URO manufacturing facility is ISO 9000 certified; plus, all URO Parts A/C belt tensioners and pulleys undergo intensive testing and inspection to make certain that each part meets or exceeds OE standards for fit, function, durability, and design.
Not Yet Reviewed
$18.99
COMP Cams HRT Max Power Master camshaft kits take the guesswork out of choosing the right valvetrain-upgrade package to achieve your desired performance with your Dodge Gen III Hemi. These Max Power kits feature the "low shock technology" of COMP's HRT camshafts with lobe profiles designed to maximize horsepower and improve stability at higher rpms. The profiles are also easier on valve springs, enhancing durability and reducing load loss. By dyno testing with many combinations of valvetrain components, COMP Cams' engineers have created these more complete, perfectly matched engine camshaft packages for your Hemi application in three different stages of performance. COMP HRT Max Power MK-kits include: * HRT Cam * Lifters * Pushrods * Conical or Beehive springs * Steel retainers * Locks * Spring seats * Valve seals * Phase limiter (VVT Hemi kits only)
( 4 )
$1,644.95
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$1,930.95
Summit Bucks
COMP Cams HRT Stage 1 camshafts use the newest and most advanced lobe designs in order to produce some of the highest average power and torque available. The "Low Shock Technology" features lobe profiles designed to maximize horsepower while improving stability at higher engine speeds. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. COMP Cams HRT camshafts receive the Micro Surface Enhancement (MSE) finishing process as a standard feature, which increases strength and performance by reducing surface peak roughness and provides a 250 percent improvement in the effective load bearing area, allowing for much higher loads. All HRT Stage 1 camshafts do not require upgraded valve springs.
( 1 )
$579.95
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$1,236.95
Summit Bucks
COMP Cams HRT Stage 2 camshafts use the newest and most advanced lobe designs in order to produce some of the highest average power and torque available. The "Low Shock Technology" features lobe profiles designed to maximize horsepower while improving stability at higher engine speeds. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. These new HRT camshafts receive the Micro Surface Enhancement (MSE) finishing process as a standard feature, which increases strength and performance by reducing surface peak roughness and provides a 250 percent improvement in the effective load bearing area, allowing for much higher loads.
( 1 )
$579.95
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$1,236.95
Put some tension on your belts with Dorman automatic belt tensioners. Rigorously tested for sustained performance by a team of product and quality engineers, Dorman's automatic belt tensioner assemblies are designed to provide proper tension to vehicle serpentine belts. They incorporate a damping design, torsion spring, and sealing system to ensure the proper functioning of many integral engine components. Replace worn-out or weak parts with Dorman automatic belt tensioners. The automatic belt tensioner should be replaced whenever the serpentine belt is replaced. Features include: * Quality tests include torque testing, spring-back testing, corrosion-resistance testing, and on-vehicle testing * Solid steel or aluminum construction for long-lasting durability * Highly resistant to heat and shock * Designed to fit properly every time
( 42 )
$23.50
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$282.99
COMP Cams LST Series solid roller camshafts deliver "Low Shock Technology." These LST cams feature lobe profiles designed to maximize horsepower, while improving stability at higher rpm. They're also easier on the valve springs, enhancing durability and reducing load loss. For maximum horsepower with either stock or aftermarket pistons (choose the model suited to your application), COMP Cams LST Series solid roller camshafts are an excellent option for your build.
Not Yet Reviewed
$541.95
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$855.95
PRW billet steel main caps raise the bar in the high performance industry. The main caps are precision-machined from high strength steel, which offers both the proper balance of strength and flexibility to allow transfer of increased shock loads to the crank and bearings. These main caps stabilize the entire crankshaft rotating assembly in your high-performance engine by eliminating annoying cap walk, and reducing main bearing bore distortion. With a combination of top-quality performance components and reasonable pricing, we know that when you receive your new PRW billet steel main caps, you will have no trouble seeing what the excitement is all about!
( 3 )
$207.03
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$341.77
COMP Cams Stage 2 LST Series hydraulic roller camshafts deliver "Low Shock Technology." These LST cams feature lobe profiles designed to maximize horsepower, while improving stability at higher rpm. They're also easier on the valve springs, enhancing durability and reducing load loss. From street durability to track power, COMP Cams Stage 2 LST Series hydraulic roller camshafts are an awesome choice for your build. The cams are available for a variety of engine, piston, and engine applications.
Not Yet Reviewed
$541.95
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$574.95
Improved Racing offers oil filter sandwich plates with thermostats in all the popular oil filter thread sizes for easily plumbing an oil cooler to your engine. Their built-in, rebuildable thermostat bypasses the oil cooler until the oil has reached its maximum operating temperature, allowing your engine to warm-up quicker and prevent oil from being over-cooled. They also allow a small percentage of fluid to continually circulate through the cooler, eliminating air pockets and preventing cold fluid from being trapped in the cooler and shocking the system. Improved Racing oil filter sandwich plates with thermostats also feature a filter bung machined from hardened 410 stainless steel for excellent durability. Please verify the fitment for your application when ordering.
Not Yet Reviewed
$249.10
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$299.00
Mahle PowerPak pistons are forged pistons with steel pins and wire locks. The pistons are hand-deburred and then coated with dry phosphate to protect against ring micro-welding and pin galling during initial startup. For additional performance, Mahle added its proprietary Grafal anti-friction coating to the piston skirts. Part numbers with T on the end have a cutting edge ceramic-based thermic barrier. The barrier is resistant to thermal shock, insulates the piston crown, and reduces heat transfer to increase performance. These replacement pistons are available in a wide variety of size options for fitment with specific engines and pistons.
( 2 )
$23.50
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$1,926.11
COMP Cams LST Series hydraulic roller camshafts deliver "Low Shock Technology." These LST camshafts feature lobe profiles designed to maximize horsepower, while improving stability at higher rpm. They're also easier on the valve springs, enhancing durability and reducing load loss. From street durability to track power, COMP Cams LST Series hydraulic roller camshafts are an awesome choice for your build. The cams are available for a variety of engine, piston, and engine applications.
Not Yet Reviewed
$541.95
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$876.95
Milodon aftermarket main bearing caps not only strengthen factory 2-bolt blocks, but they will also add a measurable degree of strength to 4-bolt blocks. They are made from precision-machined, high-strength steel, which has the proper balance of strength and flexibility to allow for the transfer of increased shock loads to the crank and bearings. The secret is in the side bolts. They are angled so that they pull from the side walls of the block and not from the flimsy main web area. They'll also load the cap against the register step, which will prevent dreaded "cap walk." They can be installed by anyone with a hand drill and a tap and they come with the necessary bolts, washers, and drill bushing to complete the installation. Milodon main cap kits are available in your choice of angled or straight bolts.
( 20 )
$119.95
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$679.95
Isky Red-Zone Max Endurance roller lifters are designed to withstand a massive amount of abuse without letting you down. In racing or high performance engines, radical cam profiles and huge spring pressures take their toll on lifters--that's where these Red-Zone lifters come into play. These lifters are designed around Marathon roller bearings that utilize a larger diameter pin and a shock-absorbing race that are able to withstand huge spring pressures and sustained high rpm without prematurely wearing out. Add to that Isky's exclusive full spectrum three-point oiling system that delivers a continuous oil supply to the lifters, and over the nose of the cam, and you end up with one of the toughest and most reliable lifters available. Don't risk the race or your engine to inferior lifters--upgrade to these Isky Red-Zone Maximum Endurance roller lifters!
( 3 )
$779.99
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$1,386.99
COMP Cams Stage 1 LST Series hydraulic roller camshafts deliver "Low Shock Technology." These LST cams feature lobe profiles designed to maximize horsepower, while improving stability at higher rpm. They're also easier on the valve springs, enhancing durability and reducing load loss. From street durability to track power, COMP Cams Stage 1 LST Series hydraulic roller camshafts are an awesome choice for your build. The cams are available for a variety of engine, piston, and engine applications.
Not Yet Reviewed
$541.95
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$574.95
Summit Bucks
COMP Cams HRT Stage 3 camshafts use the newest and most advanced lobe designs in order to produce some of the highest average power and torque available. The "Low Shock Technology" features lobe profiles engineered to maximize horsepower while improving stability at higher engine speeds. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. COMP Cams HRT Stage 3 cams receive the Micro Surface Enhancement (MSE) finishing process as a standard feature to increase strength and performance by reducing surface peak roughness. This also provides noticeable improvement in the effective load bearing area, thus allowing for much higher loads. Order the model recommended for your vehicle and engine application.
( 1 )
$579.95
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$1,330.95
PROMAXX Performance Shocker Series small block Ford cylinder heads are as good as it gets for performance heads. They feature ultra-smooth 356-T56 aluminum casting, and professionally designed runners and chambers that are meticulously CNC-ported. These heads flow over 328 cfm to easily support 725-plus horsepower. Shock the competition without breaking the bank by ordering a pair of PROMAXX Performance Shocker Series small block Ford cylinder heads. They are available assembled and bare. Features, items, and specs: * 210cc fully CNC-ported intake runners * 5-angle valve job * Diamond-honed bronze guides * Large spring pockets * Multiple spring options * Assemblies include 21-4N stainless one-piece, swirl-polished, back-cut valves, studs, and guide plates
( 1 )
$1,792.00
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$2,500.00
Continental OE Technology Series Insta Power V-Belts are designed to deliver premium, long-life performance in demanding outdoor power equipment service. They are engineered to withstand the abuse of repeated sudden shock loads, tolerate high ambient temperatures, and resist the damaging effects of dust.
( 1 )
$15.99
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$55.99
PROMAXX Performance Shocker Series Ford FE cylinder heads are exactly what the Ford FE community have been missing. They start with an ultra-smooth 356 T-6 aluminum casting which is then fully CNC-ported by Keith Craft Racing, making is a definite high-performance player at a price that will destroy the competition. These heads support flow over 350 cfm to easily support any high-horsepower build. Shock the competition without breaking the bank by ordering a pair of PROMAXX Performance Shocker Series Ford FE cylinder heads. Features, items, and specs: * 200cc fully-ported runners * Professionally ported by Keith Craft Racing * 5-angle valve job * Diamond-honed guides * Large spring pockets * Multiple spring options * 21-4N one-piece swirl-polished back-cut stainless steel valves
Not Yet Reviewed
$2,399.00
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$2,980.00
Over time, the timing chain naturally stretches. These engine timing chain tensioners by Ford Genuine Parts are designed to compensate for this wear, maintaining the correct tension as the chain elongates. Designed to the exact specifications as the factory part on your vehicle for proper form, fit, and functionality, these tensioners help prevent chain slippage, which could lead to engine misfires or complete failure. Tensioners also help absorb shock and vibration from the chain, contributing to its longevity and helping to reduce wear. Get the genuine parts you need for your Ford vehicle with the correct fit and performance you expect with Ford Genuine Parts. Order the timing chain tensioner replacements for your application.
Not Yet Reviewed
$48.99
PROMAXX Performance Shocker Series small block Chevy cylinder heads are as good as it gets for 23-degree performance heads. They feature ultra-smooth 356-T56 aluminum casting, and professionally designed runners and chambers that are meticulously CNC-ported. These heads flow over 325 cfm to easily support 725-plus horsepower. Shock the competition without breaking the bank by ordering a pair of PROMAXX Performance Shocker Series small block Chevy cylinder heads. They're available assembled and bare. Order the model with options recommended for your year/make and engine application. Features, items, and specs: * 225cc fully-ported intake runners * 5-angle valve job * Angle or straight plug * Diamond-honed guides * Large spring pockets * Multiple spring options * Assemblies include 21-4N one-piece swirl-polished back-cut valves, studs, and guide plates
( 1 )
$2,020.00
PROMAXX Performance Shocker Series big block Chevy cylinder heads are professional designed cylinder heads utilizing the latest CNC porting tools and techniques. These heads out flow the competition at a price that cannot be touched. The 340 heads will flow over 415 cfm and the 370 heads will flow over 450 cfm, so your engine will never be starved for air. Shock the competition without breaking the bank by ordering a pair of PROMAXX Performance Shocker Series big block Chevy cylinder heads. Features, items, and specs: * 340 or 370cc fully-ported runners * 5-angle valve job * 24 degree intake valve and 15 degree exhaust valve * Diamond-honed guides * Large spring pockets * Multiple spring options * 21-4N one-piece swirl-polished back-cut stainless steel valves
( 1 )
$2,367.00
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$3,968.00
Clearance
Conti V Insta-Power (Aramid Classical) belts are built for strength and endurance. Every element of these belts is designed to deliver premium, long-life performance in demanding outdoor power equipment service. Insta-Power belts are engineered to take the abuse of repeated sudden shock loads, tolerate high ambient temperatures, and resist the damaging effects of oil and dust. They consistently deliver high-performance in lawn and garden drives up to 20 horsepower. The design also makes them ideal for other power equipment where reverse bend idlers, misalignment, and quarter-turn drives cause ordinary belts to fail. Don't settle for anything less than the precision engineered Continental Conti V Insta-Power lawn and garden V-belts designed to provide perfect fit, form, and function for your application. Product features, items, and specifications include: * Aramid Classical profile construction * Construction layers include a fabric jacket, natural rubber, and Aramid tension members * High-strength aramid tensile members are oil, heat, ozone, and abrasion-resistant * Engineered rubber cushion compound * Premium envelope construction * Working (outside) temperature range of -30 degrees F to 185 degrees F (-34 degrees C to 85 degrees C) * Electrically conductive in accordance with ISO 1813 * Conditionally resistant to oil
( 2 )
$32.99
$5.50
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$69.99
Clearance
Continental ContiTech HY-T Wedge V-belts, with their narrow cross-section, require less power and are recommended for drives where pulsation, shock loads, high tension, and long centers are involved. They feature a continuous V-section that is protected by a wide-angle, synthetic fabric impregnated with high-quality engineered rubber compound. This unique envelope achieves the high-strength HY-T Wedge belts needed to withstand high loading forces. It also provides the torsional rigidity required in long center drives, delivering the traction needed for accurate tracking and precision performance. The belts are available in cogged and non-cogged models. Continental ContiTech HY-T Wedge V-belts advantages: * Reduced maintenance * Reduced drive cost * Reduced drive weight
Not Yet Reviewed
$22.99
$14.99
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$829.99
COMP Cams Stage 2 LST Master camshaft packages for GM LS applications take the guesswork out of choosing the right valve train upgrade package for your specific engine and desired performance. The "Low Shock Technology" behind COMP Cams LST camshaft packages features lobe profiles designed to maximize horsepower, while improving stability at higher rpm. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. By Spintron and dyno testing these new profiles with many combinations of valve train components, COMP Cams engineers have created valve train packages that are perfectly matched for maximum horsepower and dependability in all popular LS applications with varying modifications. Stage 2 LST kits commonly add 90+ hp, depending on application. Stage 2 LST Master camshaft packages include: * COMP Cams LST camshaft * Lifters * Timing gear set or phaser limiter (depending on application) * Pushrods * Valve springs * Retainers * Valve locks * Spring seats * Valve seats
( 1 )
$1,461.95
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$2,799.95
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