Engines & Components - back KEYWORD - Free Shipping Savings Central - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Summit Racing™ Chevy LS 5.3L 450HP Long Block Crate Engines

Looking for big LS engine power at an affordable price? Summit Racing™ remanufactured 5.3L LS long block crate engines are rated at 450 HP and 420 lbs.-ft. torque! This engine will give you the performance and drivability you have been searching for at a price you can afford. It can be a performance upgrade for 99-07 Chevy trucks, or an engine swap into your project vehicle. You will save time and money by leaving the machine-work and assembly to us. Just bolt on your accessories and drop it in. These engines are machined and assembled for us by the guys at ATK, and backed with a 2-year unlimited mile warranty for peace of mind. Technical specifications: * Horsepower: 450+ * Torque: 420+ * Block: Seasoned OE LM7/5.3L iron * Bore/stroke: 3.800-3.820 in. x 3.622 in. * Year range: 1999-2007 * Displacement: 323 C.I.D. * Crankshaft: OEM GM 3.622 in. stroke internally balanced 24-tooth reluctor wheel * Connecting Rods: OE GM forged powder metal 6.093 in. * Pistons: Hypereutectic flat top * Piston rings: Moly * Compression ratio: 10:1 compression * Camshaft: Summit Racing Pro LS Roller * Camshaft specifications: Lift- 550/550, Duration @.050- 222/232 * Camshaft bearings: Installed and clocked to OEM position * Cylinder heads: #799 or #243 OE aluminum 64cc 2.00 in./1.55 in. valves * Freeze plugs: Brass installed and sealed * Rocker arms: OE powdered metal 1.7 ratio * Oil Galley plugs: Installed and sealed

4.39 out of 5 stars ( 46 )

$3,849.99

On Sale

Summit Racing™ Cast Iron Cylinder Heads for Small Chevy

Think you have to scour the local bone yards to find a decent set of GM's old double hump or fuelie cylinder head castings? Not true. In fact, we've brought back classic Chevy performance in a big way with these ready-to-run heads for small block Chevy. Our versions of the popular GM cylinder heads offer great performance for less than it would cost to rebuild an old set of double hump castings.

4.79 out of 5 stars ( 128 )

$649.99

$499.99

ATK High Performance GM 350 Vortec 350 HP Stage 2 Long Block Crate Engines

Give your car or truck a little more punch with one of these ATK High Performance GM 350 Vortec 350 hp Stage 2 long block crate engines. These engines are built from the ground up to replace your old, tired mill with a more modern, efficient engine. ATK hand-builds and balances each one these engines to ensure they are great-running, reliable engines that will get you back on the road. Engine specifications: * HP: 350 * TQ: 400 * Block: OE roller block 4-bolt main 1-pc seal 1996-2000 * Bore/Stroke: 4.040 in. x 3.480 in. * Displacement: 350CI * Crankshaft: OE reground external balance rear of crank/internal balance front of the crank * Rods: OE powder metal 5.7 in. * Pistons: Hypereutectic 9.5:1 compression * Rings: Moly * Camshaft: Hyd. Roller * Cam Specs: 220/224 @50 .495in/.502ex 110LSA * Timing Chain: Double roller * Cylinder Heads: Vortec cast iron 67cc 1.94/1.50 *Rocker Arms: Stamped steel 1.5 ratio * Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some Corvettes and 62-67 Chevy II's) * Oil Pump: Melling STD volume * Balancer: Internally balanced – PowerBond #PB1046-N * Flexplate: Externally balanced – Pioneer #FRA-159 * Intake Manifold: ATK HP dual plane * Distributor: HEI (Iron Gear) * Water Pump: OE long pump Recommended components: * Carburetor: Quick Fuel 680CFM vacuum secondary's electric choke #HR-680 * Fuel Pump: Holley mechanical 110GPH #12-327-11 * Spark Plugs: Autolite #605 * Spark Plug Wires: 8mm Engine Info: * Oil: Conventional/Non-Synthetic 10W30 * Oil Filter: Wix or K&N * Timing: 34-36 Degrees * Spark Plug Gap: .035 in. * Firing Order: 18436572 * Octane: 91+ * Stall Converter: Stock * Exhaust: 1 5/8 Headers

4.0 out of 5 stars ( 9 )

$3,688.99

ATK High Performance GM 383 Stroker 415 HP Stage 2 Long Block Crate Engines

ATK High Performance GM 383 Stroker 415 hp Stage 2 long block crate engines are the perfect choice to drop in your ride if you're looking for some stroker power without breaking the bank. They are made of high-quality name brand parts at an affordable price and are perfect for getting your ride back on the road. ATK long block crate engines include: * Intake manifold * ATK High Performance aluminum cylinder heads with 2.020 in. /1.600 ex. valves * Distributor * Oil pan * Valve covers * Timing cover * Water pump * Harmonic balancer

4.83 out of 5 stars ( 6 )

$4,898.99

ATK High Performance GM 350 390 HP Stage 1 Long Block Crate Engines

Awesome performance and awesome looks combine with these ATK High Performance GM 350 390 hp Stage 1 long block crate engines. They are topped with trick looking parts and they have the power to back them up. These engines are hand-assembled and balanced to help them put out 390 hp and 420 ft.-lbs. of torque that will tear up the street or strip. Whether you are looking to pack some more power in your street rod, muscle car, or truck, ATK has you covered. ATK GM 350 390 hp Stage 1 long block crate engines include: * Handpicked, remanufactured block * ATK High Performance aluminum cylinder heads with 2.020 in. /1.600 ex. valves * OE crankshaft and connecting rods * Hypereutectic pistons * Hydraulic roller camshaft * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube

4.4 out of 5 stars ( 15 )

$3,798.99

ATK High Performance GM 350 Vortec 315 HP Stage 1 Long Block Crate Engines

Give your truck a little more punch with one of these ATK High Performance GM 350 Vortec 315 hp Stage 1 long block crate engines. These engines are built from the ground up to replace your old, tired mill with a more modern, efficient engine. ATK hand-builds and balances each one these engines to ensure that they are great-running, reliable engines that will get you back on the road. Engines include: * Handpicked, remanufactured blocks * Cast iron Vortec cylinder heads * OE crankshaft and connecting rods * Hypereutectic pistons * Hydraulic roller camshaft * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube

3.71 out of 5 stars ( 7 )

$2,988.99

Ford Performance Parts 572 C.I.D 655 HP Long Block Crate Engines

Big blocks are back! Ford Performance Parts 572 c.i.d. 655 hp long block crate engines are, once again, ready to make impressive power with excellent drivability—while utilizing premium, unleaded pump gas. They're available with front or rear sump pan. Specs for the Ford 572 c.i.d. long block crate engines: * 655 hp at 5,500 rpm * 710 lbs.-ft. torque at 4,500 rpm * Engine type: 385 Series big block * Bore x stroke: 4.500 in. bore x 4.500 in. stroke * Ford Performance A460 big block * Forged steel crankshaft * Forged steel H-beam connecting rods and bolts * Pistons with floating wrist pins * Hydraulic roller camshaft - Lift: .649 in. - Duration: Intake--259 degrees at .050 in. lift/exhaust--263 degrees at .050 in. lift * Ford Performance aluminum cylinder heads - Dual valve springs with damper - Stainless steel 2.20 in. diameter intake valves - Stainless steel 1.76 in. diameter exhaust valves * Compression ratio: 10.0:1 (nominal) * Required fuel: Premium unleaded * Stainless steel roller rockers * Multi-index timing chain set * Heavy-duty, aluminum body oil pump * SFI-approved vibration damper * Front or rear sump oil pan * Intake manifold * 870 cfm carburetor * Distributor * High performance water pump * Ford Performance Blue 9mm spark plug wires * Note: Built with current available parts

Not Yet Reviewed

$18,367.50

Summit Racing™ All New 300 HP Small Block Chevy 350 Crate Engines

These Summit Racing™ 350 small block Chevys are 100% new, including their blocks! No remanufactured parts are used to build these engines. They are built with new Vortec head castings that are not prone to cracking like the factory ones, and produce a reliable 300+ horsepower/375+ lbs.-ft. torque, providing a mild muscle car tone. These engines are assembled for us by the guys at ATK, and backed with their 2-year unlimited mile warranty for peace of mind.

Not Yet Reviewed

$4,499.99

Fleece Performance Freedom Series LTR Aluminum Engine Blocks

Fleece Performance Freedom Series LTR is a premium aluminum Gen V LT standard deck race block designed for high performance applications. Cast from a proprietary 356 T-6 aluminum ingot, the Freedom Series LTR engine blocks are engineered with precision and designed for durability to deliver unmatched strength and compatibility with OEM LT accessories. Reinforced from top to bottom, the blocks are built for maximum performance with added features, like cross bracing in the lifter valley, maximized crankshaft saddle radius, and a 40 percent larger footprint for the main cap contact surface to the skirt wall. Whether you're upgrading for competitive racing or seeking peak performance, the Fleece Performance Freedom Series of engine blocks ensure reliability and excellence in every detail, making them a perfect choice for serious enthusiasts and professionals alike. Features: * Cross-braced lifter valley: -- Provides added structural integrity and individual drain backs for improved reliability * Heavy-duty deck thickness: -- A robust 0.750 in. deck thickness for enhanced durability * Enhanced design: -- Additional stock to the front and rear valley walls for increased strength -- Minimum 0.625 in. skirt wall thickness -- Complete reinforced exoskeleton combined with Hot Isostatic Pressing (HIP) ensures the highest quality casting available * Billet main caps: -- Billet construction ensures stability and precision fitment -- Utilizes 8740 alloy M10 main studs and side bolts along with dowels on the inner studs of the block for superior clamping and reliability -- Exclusive domed main cap design provides maximum crankshaft support * Maximized crankshaft saddle radius: -- Optimized for performance under high-stress conditions * Lightweight: -- Weighs only 120 lbs. with main caps -- Strong yet lightweight solution * Priority oil system: -- Oil rifling provides priority oil feed to critical bottom-end components -- Reduces heat, wear, and risk of failure * Ductile iron sleeves: -- Durable wear-resistant surface with improved shock absorption Engine block is shipped with: * Durabond GMP-9 cam bearings * LTR rear cover, rear cover gasket, and hardware * Plug kit * Precision ground 1018/1020 steel cam thrust plate * Transmission dowel pins * Oil galley barbell plug * Rear main seal

Not Yet Reviewed

$6,750.00

VEGE Remanufactured Long Block Crate Engines

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.

3.81 out of 5 stars ( 72 )

$1,480.50

—

$8,139.99

ATK High Performance GM 350 390 HP Stage 2 Long Block Crate Engines

Awesome performance and awesome looks combine in ATK High Performance GM 350 390 hp Stage 2 long block crate engines. They are topped with trick looking parts and have the power to back them up. These engines are hand-assembled and balanced to help them put out 390 hp and 420 ft.-lbs. of torque that will tear up the street or strip. Whether you are looking to pack some more power in your street rod, muscle car, or truck ATK has you covered. ATK GM 350 390 hp Stage 2 long block crate engines include: * Handpicked, remanufactured block * ATK High Performance aluminum cylinder heads with 2.020 in. /1.600 ex. valves * Intake manifold * OE crankshaft and connecting rods * Hypereutectic pistons * Hydraulic roller camshaft * Cam lift- .528 int./.536 exh. * Cam duration at 0.50- 220 int./224 exh. * 10.0:1 compression * Distributor * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube * Water pump * Front damper and flexplate

4.0 out of 5 stars ( 1 )

$4,298.99

ATK High Performance Ford 351W 300 HP Stage 1 Long Block Crate Engines

Bring your old car or truck back to life with ATK High Performance Ford 351W 300 hp Stage 1 long block crate engines. These engines are built by hand by true craftsmen to ensure a strong-running, reliable engine for your daily driver or hot rod. These engines come ready for you to install your choice of finishing touches, so you can get back out on the road. More product features, items, and specifications include: * Seasoned OE-style roller block (1987-95; 300 hp, 377 torque; 4.060 in. bore x 3.500 in. stroke) * OEM E7TE cast iron cylinder heads (1.77 in. intake/1.46 in. exhaust) * OE-style connecting rods and crankshaft (one-piece rear main seal; 28 oz. balance) * Hypereutectic pistons (9.1:1 compression ratio) * Hydraulic roller camshaft Camshaft ---220/224 Intake/Exhaust Duration at 0.050 in. Lift ---0.512 in. /0.512 in. Intake/Exhaust Valve Lift with Factory Rocker Arm Ratio ---112 degrees LSA (Lobe Separation Angle) * Moly-style piston rings * Timing cover * Oil pan (rear sump truck) and oil pump (Melling standard volume) * Stamped steel 1.6 ratio rocker arms

3.4 out of 5 stars ( 5 )

$3,841.99

ATK High Performance GM 350 Vortec 350 HP Stage 1 Long Block Crate Engines

Give your car or truck a little more punch with ATK High Performance GM 350 Vortec 350 hp Stage 1 long block crate engines. These engines are built from the ground up to replace your old, tired mill with a more modern, efficient engine. ATK hand-builds and balances each one these engines to ensure that they are great-running, reliable engines that will get you back on the road. ATK GM 350 Vortec 350 hp Stage 1 long block crate engines include: * Handpicked, remanufactured blocks * Cast iron Vortec cylinder heads * OE crankshaft and connecting rods * Hypereutectic pistons * Hydraulic roller camshaft * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube

5.0 out of 5 stars ( 7 )

$3,334.99

March Performance Sport Track Ultra All-Inclusive Chevy Serpentine Pulley Kits

Rubber V-belts were first introduced into automobiles back in 1917—and it took over 60 years to find a suitable replacement. March Performance Sport Track Ultra all-inclusive Chevy serpentine pulley kits are the perfect upgrade for lower performing V-belt pulleys. Serpentine belts are more efficient, thicker, reduce slippage, and last longer—and since they use just one tensioner, all the components can be solidly mounted to the engine. These kits include a unique reusable belt tensioner tool which allows you to easily make adjustments, then remove and store the tool till needed. March uses precision CNC construction with 6061-T6 aluminum for a precise fit and solid strength, along with high-quality components and brackets; all mounting hardware is included. There are many advantages to serpentine belts, and with the incredible fit, finish, and construction of March Performance Sport Track Ultra all-inclusive Chevy serpentine pulley kits, you'll get performance and style all in one.

4.33 out of 5 stars ( 3 )

$1,906.99

—

$2,100.99

Eagle Forged 4140 Steel Crankshafts

They're back! Eagle forged 4140 steel crankshafts fill the gap for more needed strength without the big price tag! Recommended for use up to 1,000 hp, these Eagle 4140 cranks will handle the performance demands of your competition engine, keep you on budget, and put a smile on your face! When you need more than a cast crank but don't want to step up to the more expensive 4340 steel model, Eagle forged 4140 steel crankshafts offer a lot of what you need for less dollars.

3.67 out of 5 stars ( 3 )

$776.99

—

$871.99

Clearance

VEGE Remanufactured Cylinder Heads

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.

3.77 out of 5 stars ( 43 )

$468.99

$217.50

—

$1,494.99

Ford Performance Parts 2024 Gen 4 5.0L 480 HP Coyote Long Block Crate Engines

Ford Performance Parts 2024 Gen 4 5.0L 480 hp Coyote engines are the latest all-aluminum crate engines from the 2024 Mustang GT. These modern 5.0L 32-valve DOHC V8s use advanced features, such as direct and port fuel injection, twin independent variable camshaft timing (Ti-VCT), high-flow cylinder heads, dual throttle bodies, and a heightened compression ratio to deliver 480 hp and 415 lb.-ft. of torque (with premium fuel). These lightweight plasma-transferred wire-arc spray aluminum cylinder blocks feature cross-bolted main bearing caps and thick main bearing bulkheads for bottom-end strength, and an optimized oil drain back and windage control to improve high-rpm performance. Available with production flexplate (automatic) or dual mass flywheel (manual) and both include engine harness. Engine specs: * 480 hp at 7,150 rpm * 415 lb.-ft. of torque at 4,900 rpm * 12.0:1 compression ratio * Bore 93mm x stroke 92.7mm * Hypereutectic aluminum pistons * Sintered steel connecting rods as used on BOSS 302 Mustang * Forged steel crankshaft * Aluminum block with plasma transferred wire arc spray weld liner coating * Longer, 12mm head bolts for higher clamp load * 9.5 qt capacity steel oil pan * Tuned composite intake manifold provides efficient air delivery and weight savings * Twin 80mm single bore drive-by-wire, electronic throttle bodies with variable runner control * High-flow aluminum cylinder heads, dual overhead camshaft (DOHC), four valves per cylinder, variable intake and exhaust camshaft timing * Engine mount bosses and bellhousing mount pattern common to 5.0L modular engines * Mustang GT 409 stainless steel tubular exhaust manifold on the RIGHT SIDE ONLY

5.0 out of 5 stars ( 1 )

$11,701.99

BluePrint Engines Chrysler 408 C.I.D. 465 HP Dressed Long Block Crate Engines

BluePrint Engines Chrysler 408 C.I.D. 465 hp dressed long block crate engines are fully Dyno tested, passed vigorous inspections, and ready to power up your project. These Mopar compatible crate engines are ready to replace your tired Charger, Dart, Roadrunner, or Barracuda powerplant. There's no replacement for displacement, and replacing a little 273, 318, or 360 with a Blueprint 408 stroker crate engine will have your back tires up in smoke in no time! They are offered with a polished or black finished serpentine 8-rib front pulley kit. Features, specs, and contents: * Horsepower and torque: 465 hp/494 lb.-ft. * Handpicked seasoned Magnum block * Cylinders honed to within .0002 straightness and roundness * 2-bolt main * 4.000 in. bored .040 in. over * Cast steel crankshaft * 4.000 in. stroke * Forged Magnum 6.123 in. connecting rods with 150,000 psi bolts * Forged pistons * Aluminum Magnum pattern cylinder heads--58cc chamber * Aluminum roller rockers * 2.02 in. intake/1.60 in. exhaust valves * 176cc intake/75cc exhaust runners * Roller cam * .580 intake/.577 exhaust * 235 intake/242 exhaust duration at .050 * 110 degree lobe separation * Valve covers, oil pan, timing cover, water pump, plugs, wires, distributor, water neck, thermostat, fuel pump and fuel line, harmonic balancer, air cleaner * Power steering pump: Type II with -6AN pressure, -10AN return, 1,400 psi * Air conditioning compressor: 7B10 Peanut-style * 30 month/50,000 mile warranty

Not Yet Reviewed

$11,999.00

ATK High Performance GM LM7 5.3L with AFR Heads 500 HP Base Long Block Crate Engines

ATK specializes in muscle. With the highest quality internal parts and dyno-proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty. This ATK High Performance GM LM7 5.3L 500 hp base long block crate engine is fitted with AFR heads. Engine specifications: * Horsepower: 500 * Torque: 440 * Block: OE LM7/5.3L iron * Bore/stroke: up to 3.903 in. x 3.622 in. * Displacement (cu.in): up to 347c.i.d. * Crankshaft: OE GM 24 tooth reluctor wheel * Rods: OE powder metal * Pistons: Hypereutectic 10.1 compression * Rings: Moly * Camshaft: Hydraulic roller * Cam specs: Custom performance grind * Timing chain: OE single roller * Cylinder heads: -- AFR CNC ported aluminum -- 59cc/200cc -- 2.000 in. intake/1.570 in. exhaust * Rocker arms: OE 1.7 ratio with trunnion upgrade * Oil pump: Melling M295

Not Yet Reviewed

$5,556.99

APR Engine Covers

The 2.0T EA888.4 found in the MQB EVO / MK8 platform has possibly the most underwhelming engine cover to grace the 2.0T since its inception generations back. Some vehicles even came with no cover at all due to the fact the flimsy and floppy factory cover could pop off and catch on fire. APR fixed this with a new ridged carbon fiber design that's drop dead gorgeous. Available in Gloss Carbon Fiber Twill, and Exotic Gloss Forged Carbon Fiber, the new covers are sure to turn heads. They match the overall shape and theme of the factory cover, but ooze aesthetic appeal, thanks to the carbon fiber materials, red and black accents, and of course, the world-renowned APR logo plate. The engine covers look right at home in an otherwise stock engine bay, but shine when paired with an APR intake system and matching intake cover. Simply plug and play, no tools necessary! Of course, it doesn't affect emissions, and some on the internet have even suggested the covers may add horsepower, at least more than stickers do Additional features: * Significantly enhances the appearance of the engine bay * Reduces weight by 42 percent over stock (MK8 Version) * Enhances vehicle performance with weight reduction * Reduces weight over the front axles * Optimizes weight distribution * Emissions compliant

Not Yet Reviewed

$921.95

ATK High Performance GM 350 390 HP Stage 3 Long Block Crate Engines

Awesome performance and awesome looks collide with ATK High Performance GM 350 390 hp Stage 3 long block crate engines. They are topped with trick looking parts and have the power to back them up. Each engine is hand-assembled and balanced to help them put out 390 hp and 420 ft.-lbs. of torque that will tear up the street or strip. Whether you are looking to pack some more power in your street rod, muscle car, or truck, ATK has you covered! ATK GM 350 390 hp Stage 3 long block crate engines include: * Handpicked, remanufactured block * ATK High Performance aluminum cylinder heads with 2.020 in. /1.600 ex. valves * Intake manifold * Carburetion * OE crankshaft and connecting rods * Hypereutectic pistons * Hydraulic roller camshaft * Cam lift- .528 int./.536 exh. * Cam duration at 0.50- 220 int./224 exh. * 10.0:1 compression * Distributor, plug wires, and plugs * Valve covers * Timing cover and timing set * Oil pan, pump, and pickup tube * Water pump * Front damper and flexplate

5.0 out of 5 stars ( 2 )

$5,523.99

ATK High Performance Ford 427 Stroker 545 HP Complete Long Block Crate Engines

ATK specializes in muscle. With the highest quality internal parts and dyno-proven combinations, ATK is able to add the most bang for your buck and back it up with an industry leading warranty. Part of their Signature Series, ATK High Performance Ford 427 Stroker 545 hp complete long block crate engines offer these engine specifications: * Torque: 580 lb.-ft. * Block: 351W SBF 4-bolt, one-piece seal, 9.500 in. deck * Bore/Stroke: 4.125 x 4.000 * Displacement: 427 * Crankshaft: 4340 forged internal balance * Rods: 4340 forged H-beam with ARP 8740 bolts * Pistons: Forged 10.4:1 compression * Rings: Moly * Camshaft: Hydraulic roller * Camshaft specs: 235/238 at 50 .573 intake/.582 exhaust, 112LSA * Timing chain: Double roller * Cylinder heads: ATK HP aluminum 58cc/205cc, 2.02/1.60 * Rocker arms: Aluminum 1.6 roller rockers * Oil pan: Front sump 7qt. street/strip pan * Oil pump: High volume * Valve covers: Finned black powdercoat, matching PCV valve, and push-in breather * Air cleaner: 15 in. oval x 3 in. Super Flow air cleaner system, washable filter * Balancer: Internal balance * Flexplate/flywheel: Internal balance, 164-tooth * Intake manifold: Performer RPM air gap dual plane * Distributor: Pro billet (upgraded melonite gear) * Water pump: Early RH inlet standard rotation * Carburetor: 750 cfm mechanical secondary * Fuel pump: Mechanical 110 gph * Fuel line: Dual inlet AN stainless hose from pump to carb * Spark plugs and 8mm wires

Not Yet Reviewed

$15,174.99

ATK High Performance GM LM7 5.3L with AFR Heads 500 HP Crate Engines with EFI

ATK specializes in muscle. With the highest quality internal parts and dyno-proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty. This ATK High Performance GM LM7 5.3L 500 hp long block crate engine is fitted with AFR heads and FiTech EFI. Engine specifications: * Horsepower: 500 * Torque: 440 * Block: OE LM7/5.3L iron * Bore/stroke: up to 3.903 in. x 3.622 in. * Displacement (cu.in): up to 347c.i.d. * Crankshaft: OE GM 24 tooth reluctor wheel * Rods: OE powder metal * Pistons: Hypereutectic 10.1 compression * Rings: Moly * Camshaft: Hydraulic roller * Cam specs: Custom performance grind * Timing chain: OE single roller * Cylinder heads: -- AFR CNC ported aluminum -- 59cc/200cc -- 2.000 in. intake/1.570 in. exhaust * Rocker arms: OE 1.7 ratio * Oil pump: Melling M295 * EFI System: -- FiTech Ultra port injection LS1 750 hp with transmission control -- Wiring harness and ECM/TCM included * Fuel injectors: FiTech 55 lb. * Spark plugs: Autolite #104 * Spark plug wires: 8mm * Balancer: Stock internally balanced

Not Yet Reviewed

$8,899.99

PROMAXX Performance Shocker Series Small Block Ford Cylinder Heads

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

5.0 out of 5 stars ( 1 )

$1,792.00

—

$2,500.00

30 Results Found For "back"