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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
( 15 )
$4,189.99
$3,989.99
On Sale
VEGE remanufactured long block crate engines are an excellent foundation for budget-minded builds. These premium-quality refurbished engines are drop-in replacements for a wide range of stock vehicles—and can be retrofitted into additional applications. Each engine is reverse-engineered to ensure that any original defects are removed. Certified technicians recondition the long blocks to factory specifications, replacing wearable parts or machining them back to OE standards. The engines are thoroughly tested and calibrated to deliver maximum performance and long-term durability. Order the VEGE remanufactured crate engine recommended for your vehicle.
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$1,936.99
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$4,785.99
$1,736.99
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$4,585.99
On Sale
Summit Racing™ OEM LS valve covers make a great choice to service and maintain your vehicle's LS engine. They are made from premium materials to OEM specifications for proper fit and performance, as well as good looks under the hood. Choose the replacement valve covers for your application.
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$59.99
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$80.99
$57.99
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$76.99
On Sale
5.0L Ford Coyote engines are popular engines being swapped into classic Ford muscle cars and trucks. Weiand Coyote swap oil pans are specifically designed for the installation of Gen 1 and 2 or Gen 3 Coyote engines into 1965-79 Ford F-Series trucks. The pans feature high-quality pressure-tight cast aluminum construction with an OE appearance and clean exterior styling. Select the correct pan for your swap. Features of Weiand Coyote swap oil pans: * Complete kit includes a hinged-door sump baffle, OE-quality pick-up tube, and mounting hardware * Maintains oil capacity of stock Mustang Coyote oil pan (8 qt. nominal) to ensure adequate oil supply in all street performance and mild on-track applications * Installs using stock Coyote engine gasket/baffle assembly to provide factory-like sealing and oil windage control characteristics * Pick-up tube is based on the OE design, manufactured with smooth bends minimizing any possible flow restriction to the oil pump inlet * Bolt-in hinged-door baffle maintains oil at the pick-up, providing consistent oil pressure to the engine * Three cast-bosses, one on each side and one at the front-left, may be drilled and tapped for a hose fitting if turbocharger or breather can oil returns are required * Sump design is made for the original truck chassis front crossmember or for Crown Vic front suspension conversions
Not Yet Reviewed
$499.95
$374.95
On Sale
Holley retrofit engine oil pans for GM LS engines are designed to install an LS engine in a variety of GM muscle car and truck chassis. They provide OEM fitment, OEM oil filter mounting, OEM oil cooler port provision, OEM engine NVH suppression, OEM flange gasket and sealing, proper structural rigidity, and OEM bellhousing attachments. The oil pans are manufactured from traditional high-quality cast aluminum and include a sump baffle, oil pump pickup tube, sump plug, oil filter stud, and oil passage cover.
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$470.95
$306.95
On Sale
Summit Racing™ Extreme Duty cylinder head stud kits are engineered to withstand the stress and abuses that high-horsepower engines endure. These fastener kits come with all necessary studs, nuts, washers, lubricant, and instructions to ensure maximum performance and reliability. Order the hardware recommended for your year/make and engine application. Extreme Duty fasteners feature: * 190,000 psi tensile strength minimum * High-strength chromoly steel utilized for all products * Precision manufacturing processes ensure consistent product performance * All studs are twice straightened to guarantee straightness * Threads are rolled after heat treatment for high strength * Tensile and yield strength tested after thread rolling * Uniformly applied black oxide surface finish * Anti-rust oil coating to protect fasteners from corrosion
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$399.99
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$499.99
$349.99
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$449.99
On Sale
Summit Racing™ Pro Hemi Non-MDS swap camshafts are made from high-quality bearing steel cores. They are precision ground and finished on modern CNC grinders to provide you with a premium replacement cam. Choose the model that fits your engine and make sure to use with Non-MDS lifters.
( 1 )
$349.99
$299.99
On Sale
The lifeblood of your vehicle is lubricant—which is why Mr. Gasket engine oil dipsticks and tubes are so important. They're small, inexpensive parts that tell you if your oil supply is dangerously low. And besides the function they fulfill, these accessories look great under the hood. Made from steel or billet aluminum, the dipsticks are available in a black, polished, or chrome plated finish. Find the OE-style kit that's built to fit your specific engine application.
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$19.95
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$59.75
$12.97
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$32.86
On Sale
VEGE Remanufactured cylinder heads are a popular choice for performance and value. With its advanced and efficient production process, backed by more than eight decades of experience, VEGE is able to supply remanufactured cylinder heads with a level of quality that equals that of new OEM products—at extremely competitive prices. The rebuilt cylinder heads are carefully inspected, cleaned, and then fully machined and assembled with top-of-the-line components. Unless otherwise noted, the assemblies include a cast iron or aluminum cylinder head, intake and exhaust valves, valve springs, retainers, locks, stem seals, rocker arm studs, and more. Many heads include rocker arms. Nearly a thousand models are available, for fitment on countless applications.
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$244.99
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$690.99
$194.99
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$640.99
On Sale
Holley LS engine accessory drive kits offer simple, clean, cost-effective solutions when swapping a GM LS engine into a muscle car, truck, hot rod, or any other vehicle. These bracket kits deliver a factory-style appearance, correct belt alignment, and factory stability. They fit virtually all common LS engines, regardless of water pump and harmonic balancer offsets—reducing cost and complexity. Holley LS engine accessory drive kits position the A/C compressor high above the crossmember, but below the hood line, for an easy installation. The brackets are manufactured from diecast aluminum with a natural, polished, or black finish. (An application-specific installation kit is required, but sold separately.)
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$220.95
$121.95
On Sale
Summit Racing™ Pro LS T6 single and twin turbo cams have increased overlap from the standard turbo cams to take advantage of the better turbine housing flow. As a result, these cams will increase RPM and work with larger cubic inches better in race applications where an open front exit exhaust is utilized.
Not Yet Reviewed
$349.99
$299.99
On Sale
These oil filter adapters from Mr. Gasket mount a spin-on oil filter. Some adapters contain a filter bypass valve.
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$49.95
$32.47
On Sale
Holley Ford 7.3L Godzilla oil pan baffles feature a hinged door baffle design for racing. They fit into Holley's Godzilla oil pan included in their accessory drive kits with Holley oiling system, and can be used with factory windage tray.
Not Yet Reviewed
$184.85
$101.95
On Sale
Holley offers LS swap 4WD truck off-road oil pan baffles for a variety of trucks, including many Chevy and GMC models from the 1970s and '80s. They take Holley's popular cast aluminum oil pans (P/N 302-4 and 302-4BK) designed to swap LS engines into K10s and other trucks to a whole new level. Vehicles that endure prolonged sessions of climbing, crawling, braking, turning, and accelerating need extra protection from oil starvation. That's where these baffle kits come in. They improve upon the baffle included with those pans, maintain proper oil level at the oil pump pick-up during vehicle elevation and grade changes, accelerations, both lateral and linear, and braking. This prevents loss of engine oil pressure during off-road excursions as well as during hard acceleration. Each baffle is fabricated from sheet aluminum joined by TIG-welded joints. Directionally positioned one-way trap doors allow oil flow toward the oil pump pick-up but not away. These direct bolt-in baffles are designed to be used in the Holley P/N 302-4 and 302-4BK LS Swap oil pan with the standard pickup, and are a drop-in replacement for the standard tray baffle. They're great for street, race, and off-road applications.
Not Yet Reviewed
$217.95
$141.95
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.
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$83.35
$45.84
On Sale
Check out Hooker alternator brackets if you're planning on running a set of headers—particularly on a small block engine from the '50s or '60s—there's a good chance you'll need to change those old mounts. Reduce flex and ensure proper belt alignment with these steel Hooker alternator brackets--available in different configurations and an anodized or painted black finish, depending on the application.
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$67.45
$37.10
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
FiTech Plus LS Swap oil pans are for use in common stroker LS swapped applications where chassis clearance concerns are not a critical issue. These pans will fit most GM rear wheel drive vehicles that were originally equipped with a small block or big block Chevy engine and traditional rear sump pan. The units feature high-quality cast aluminum construction with clean exterior styling in three finish options. They're offered in standard, medium, and ultra-low profile models. Each complete kit also includes a sump baffle, pick-up tube, sump plug, oil filter stud, and oil passage cover. FiTech Plus LS Swap oil pans are available for a wide range of cars and trucks, including many Chevrolet, Buick, GMC, Oldsmobile, Pontiac, Ford, and Mercury models from 1960 and up. Select the size and style recommended for your ride.
Not Yet Reviewed
$419.00
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$479.00
$377.10
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$431.10
On Sale
For certain applications, higher than normal oil pressure is required. Typically, the oil pan must be removed to change the pressure spring on an oil pump. The Holley oil system allows direct access to the spring through the access port on the bottom front of the pan. Holley's high-pressure spring for Ford 7.3L Godzilla engines with their oil pump and pan can be purchased and installed to increase oil pressure by approximately 10 psi at higher rpms. To change the spring, remove the port plug, spring, and plunger. In some cases, the plunger may stay in the port. Make sure when reassembling the plunger is on top of the spring and oriented correctly.
Not Yet Reviewed
$19.95
$10.97
On Sale
Weiand oil pan packages were clearly visible on those old gassers, getting them down the track with speed and consistency. The oil pan features trap door baffles to help keep oil under control during hard acceleration, as well as increased oil capacity to keep high performance engine oil systems fed properly. Choose from among dozens of Weiand oil pan packages—a great option for drag race, road race, and circle track applications.
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$478.95
$263.95
On Sale
Genuine Holley Quality Parts offer Holley tensioner spacer kits for your R4 accessory tensioners. Spacer and hardware are included to provide additional support and clearance.
Not Yet Reviewed
$27.69
$15.23
On Sale
Holley LSA accessory drive hardware kits are offered for alternator, power steering, and supercharged accessory drive components. These Genuine Holley Quality Parts are highlighted by steel construction and a nickel finish. Choose the hardware needed for your LSA accessory drive.
Not Yet Reviewed
$48.37
$26.60
On Sale
Upgrade your transmission cooling with a Fluidyne high performance bar and plate transmission fluid cooler. Designed for the 2020-24 GM 6.6L Duramax, these coolers offer 4x the heat dissipation of factory models, ensuring your transmission runs cooler and more efficiently. With the densest fins per inch in the market, Fluidyne coolers provide superior cooling performance. All internal splitter plates are fully welded, preventing fluid contamination between the cold and hot side fluids. Built from aerospace-grade aluminum with bar plate construction, each unit offers maximum cooling with minimal pressure drop. These direct replacements use existing factory mounts for easy installation. Additional details: * Enhanced heat dissipation * Direct bolt in replacement * Densest fins per inch * Proprietary fin design for highest performance * Powdercoated with a proprietary heat-wicking compound * Over 4x the heat exchanging capacity compared to the stock cooler
Not Yet Reviewed
$499.00
$449.10
On Sale
You won't find a better quality cam for your LS-based engine than our Summit Racing™ Pro LS series of cams. These convenient combo kits enable you to get the cam along with the correct matching lifters. Pro LS cam, lifters, and trays are included in one easy-to-order part number. Whether for street/strip, turbocharged, or racing use, you'll find the kit recommended for your year/make and engine application.
( 4 )
$600.57
$565.97
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