ls365-450

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LS364/450

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

PARTS INTENDED FOR COMPETITION USE ONLY.
Click for more details.

PROPOSITION 65 WARNING.
Click for more details.

PROPOSITION 65 WARNING.
Click for more details.

Budget performer blends best of LS engine family

The LS364/450 is a value-driven foundation for hot rod builders and enthusiasts looking to give their earlier LS-powered vehicles a high-performance shot in the arm. Featuring a strong, economical iron cylinder block and durable rotating assembly, the LS 6.0L features the high-lift LS6 camshaft and the deep-breathing LS3 aluminum cylinder heads.

PART NO. 19370163

RPM Icon

452 HP @ 5600 RPM

Torque Icon

441 LB-FT @ 4800 RPM

Big Power on a Budget

We offer the LS364/450 exclusively as a long-block assembly, without the induction system, ignition system, or front-end accessory drive system, allowing builders to transfer components from their early LS-powered vehicle or complete a custom build with the components of their choice. An intake manifold that matches the LS3/L92-style rectangular intake ports is required.

Installation Guides 

Find everything from vital data about your engine’s capabilities to how to install it into your build.

Installation Guides 

Find everything from vital data about your engine’s capabilities to how to install it into your build.

Installation Guides

LS364/450 Tech Specs

  • Part Number: 19370163
  • Engine Type: Performance LQ9 long-block
  • Displacement (cu. in.): 364 cu. in. (6.0L)
  • Bore x Stroke (in.): 4.000 x 3.622 in. (101.6 x 92 mm)
  • Block: Cast iron with 6-bolt block,
    cross-bolted main caps
  • Crankshaft: Nodular iron
  • Connecting Rods: Powdered metal
  • Pistons: Hypereutectic aluminum
  • Camshaft Type (P/N 12565308): LS6 hydraulic roller
  • Valve Lift (in.): 0.550 intake/0.550 exhaust
  • Camshaft Duration (@0.050 in.): 204º intake/218º exhaust
  • Cylinder Heads: LS3 rectangular port; aluminum,
    as-cast with 68cc chambers
  • Valve Size (in.): 2.165 intake (hollow stem)
    1.590 exhaust (solid stem)
  • Compression Ratio: 10.3:1 (nominal)
  • Rocker Arms: Investment cast, roller bearing
    trunnion
  • Rocker Arm Ratio: 1.7:1
  • Recommended Fuel: Premium pump
  • Maximum Recommended rpm: 6800
  • Reluctor Wheel: 24X
  • Balanced: Internal

Recommended Engine Oil

Mobil 1 is now The Official Motor Oil of Chevrolet Performance. With Mobil 1 full synthetic motor oil for street engines and Mobil 1 Racing oil for race engines, Mobil 1 protects all Chevrolet Performance crate engines.


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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.

  • CHEVROLET PERFORMANCE PARTS COMPLIANCE WITH EMISSIONS STANDARDS

    Motor vehicle emissions standards are intended to help achieve and maintain air quality goals that benefit human health and the environment. U.S. federal and state and Canadian law prohibits knowingly removing, modifying, or making inoperative, or causing someone to remove or render inoperative, or otherwise tampering with, any part or element of design installed in compliance with motor vehicle emission standards on a motor vehicle or nonroad vehicle, or otherwise modifying any required emission and noise control system. Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet emissions laws and regulations and should not be operated on public roads or used for any other use. This part is intended primarily for use in vehicles that are NOT:

    (1) “motor vehicles” designed for street use; or

    (2) off-road vehicles used for anything but competition.

    U.S. federal and state, and Canadian provincial agencies have the authority to administer substantial monetary penalties against individuals and companies who do not comply with these laws. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance Parts complies with applicable federal, state/provincial and local laws, regulations and ordinances, and for ensuring that modified vehicles are operated in a manner that complies with applicable laws. In an effort to help consumers maintain compliance with emissions regulations, the product descriptions for many parts include emissions-related warnings and notices. This page summarizes the emissions-related information that you may see on this website.

    PARTS INTENDED FOR COMPETITION USE ONLY

    Chevrolet Performance offers parts that are intended exclusively for use in competition vehicles that will only be driven on a track or off-road course. By “competition vehicles,” GM means vehicles (i) used exclusively for competitions organized and sanctioned by a local or private body and (ii) not designed for use on public streets or highways. Consumers are strongly advised not to install parts accompanied by this warning on vehicles that will be driven on public roads, as they are not designed for that purpose. The product descriptions for such parts are accompanied by the “Checkered Flag” warning icon.

    WARNING: NOT EMISSIONS LEGAL FOR STREET USE

    Because of their effect on a vehicle’s emissions performance, certain parts are intended exclusively for use in competition vehicles. The “Checkered Flag” warning icon means a part is designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Installation or use of this part on a vehicle operated on public streets or highways is likely to violate U.S., Canadian, and state and provincial laws and regulations relating to motor vehicle emissions.

  • WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

  • Manufacturers of add-on and modified emissions-related parts (aftermarket parts) that sell their product for use in California vehicles must obtain an exemption from the California Air Resources Board (CARB). This exemption is called an Executive Order (EO) and allows the part or modification to be installed on specific emission controlled vehicles and used in vehicles driven on public streets and highways. An exemption is granted if the product has been determined not to cause an increase in vehicle emissions from the production vehicles for which the part is intended, nor otherwise cause vehicles to be non-compliant with the vehicle emissions certification and anti-tampering laws.

    Every EO part or modification comes with a unique assigned number and comes with limitation and restrictions on the installation and use of the part. The EO number will appear on a special exemption label affixed to the part or its packaging. Consumers are advised to familiarize themselves with the EO and its limitations and restrictions to ensure that such parts are installed and used properly. The product descriptions for some parts listed on the Chevrolet Performance website are accompanied by the “50 State” icon and the following notice:
    The “50 State” icon means that this part has undergone an evaluation by CARB and that CARB has determined that the part or modification has been shown to not increase vehicle emissions when installed and used properly in the application(s) identified in the product description. CARB policy authorizes consumers to install and use these parts in vehicles driven on public streets and highways. Parts that have an exemption include the EO number and a link to the CARB website so that customers are informed of the requirements and limitations of installation and use contained in the EO.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.

  • With rear seats folded. Cargo and load capacity limited by weight and distribution

  • EPA-estimated 29 MPG city/39 highway with 5-speed manual transmission and 30 MPG city/38 highway with available Continuously Variable Transmission

  • EPA estimated with 3.6L V6 engine.

  • Cargo and load capacity limited by weight and distribution.

  • EPA estimated with 3.6L V6 engine.

  • Chevrolet Infotainment System functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.

  • Vehicle user interface is a product of Apple and its terms and privacy statements apply. Requires compatible iPhone and data plan rates apply. Apple CarPlay is a trademark of Apple Inc. Siri, iPhone and iTunes are trademarks of Apple Inc., registered in the U.S. and other countries.

  • Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.

     

  • EPA-estimated MPG city/highway: Sonic Sedan with 6-speed manual transmission 27/38; with 6-speed automatic transmission 26/34; Sonic Hatchback with 6-speed manual transmission 26/35; with 6-speed automatic transmission 26/34.

  • Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See your vehicle Owner’s Manual for more information.

  • Connected Services include navigation services and Remote Access Plan, and 1 month/3 GB of 4G LTE data (whichever comes first) from vehicle delivery date. Services are subject to User Terms and limitations. Certain services require working electrical system, cell service and GPS signals. OnStar links to emergency services. Visit onstar.com for more details.

  • Model year 2018 and newer vehicles include: 1 month of OnStar Safety & Security Plan and 1 month of Chevrolet Connected Services which include navigation services, Remote Access Plan and 1 month or 3 gigabytes of 4G LTE data (whichever comes first) from vehicle delivery date. Services are subject to user terms and limitations. Visit onstar.com for more details. Data plans offered by AT&T. Availability subject to change.

  • Connected Services include navigation services and Remote Access Plan, and 1 month/3 GB of 4G LTE data (whichever comes first) from vehicle delivery date. Data plan offered by AT&T. Services subject to user terms and limitations. Certain services require working electrical system, cell service, and GPS signal. OnStar links to emergency services.  Visit onstar.com for more details.

  • If you decide to continue service after your trial, the subscription plan you choose will automatically renew thereafter and you will be charged according to your chosen payment method at then-current rates. Fees and taxes apply. To cancel you must call SiriusXM at 1-866-635-2349. See SiriusXM Customer Agreement for complete terms at siriusxm.com. All fees and programming subject to change. Sirius, XM, SiriusXM and all related marks and logos are trademarks of Sirius XM Radio Inc.

  • EPA estimate for Sonic with available 6-speed automatic transmission.

  • With rear seats folded. Cargo and load capacity limited by weight and distribution.

  • EPA-estimated 238-mile EV range. Your actual range may vary based on several factors including temperature, terrain, and driving technique.

  • EPA-estimated 238-mile EV range. Your actual range may vary based on several factors including temperature, terrain, and conditions.

  • Read your vehicle owner's manual for important feature limitations and information.

  • Read your vehicle owner's manual for important feature limitations and information.

  • EPA-estimated 53-mile range based on 106 MPGe combined city/highway (electric); 367-mile extended range based on 42 MPG combined city/highway (gas). Your actual range may vary based on several factors, including temperature, terrain and driving technique.

  • Visit my.chevrolet.com/learn for vehicle and smartphone compatibility.

  • Available late 2018.

  • Read the vehicle Owner's Manual for important feature limitations and information.

  • Requires available Performance Exhaust or Z51 Performance Package.

  • Requires available Performance Exhaust or Z51 Performance Package.

  • If you decide to continue service after your trial, your selected subscription plan will automatically renew thereafter. You will be charged at then-current rates. Fees and taxes apply. To cancel you must call SiriusXM at 1-866-635-2349. See SiriusXM Customer Agreement for complete terms at siriusxm.com. All fees and programming subject to change. ©2018 Sirius XM Radio Inc. All rights reserved.

  • Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • EPA-estimated 28 City/39 Hwy MPG

  • With second row seats folded flat. Cargo and load capacity limited by weight and distribution.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.

  • Read the vehicles Owner’s Manual for more important feature limitations and information.

  • Does not detect people or items. Always check rear seat before exiting.

  • Vehicle user interface is a product of Google, and its terms and privacy statements apply. Requires the Android Auto app on Google Play and an Android compatible smartphone running Android (TM) 5.0 Lollipop or higher. Data plan rates apply. Android Auto is a trademark of Google LLC.

  • Service varies with conditions and location. Requires active service plan and paid AT&T Data plan. See onstar.com for details and limitations.

  • Premier shown seats seven. Standard on L, LS. Available on LT.

  • EPA-estimated with available 3.6L engine (FWD).

  • With second and third row seats folded flat. Cargo and load capacity limited by weight and distribution.

  • Read the vehicle owner's manual for important feature limitations and information.

  • The system wirelessly charges one mobile device. Some devices require an adaptor or back cover. To check for phone or other device compatibility, visit my.chevrolet.com/learn for details.

  • With rear seats folded. Cargo and load capacity limited by weight and distribution.

  • Available on all trims and standard on RS and Premier including 3.6L V6 engine.

  • Requires AWD model. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Chevrolet Infotainment System functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices. Map Coverage available in the United States, Puerto Rico and Canada.

  • Dependability based on longevity: 1987–July 2017 full-size pickup registrations.

  • Model year 2018 and newer vehicles include: 1 month of OnStar Safety & Security Plan and 1 month of Chevrolet Connected Services which include navigation services, Remote Access Plan, and 1 month or 3 gigabytes of 4G LTE data (whichever comes first) from vehicle delivery date. Services are subject to user terms and limitations. Visit onstar.com for more details. Data plans offered by AT&T. Availability subject to change.

  • Requires Silverado 3500 HD Crew Cab 2WD DRW with fifth-wheel hitch and available Duramax 6.6L Turbo-Diesel V8 engine. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • With available Duramax 6.6L Turbo-Diesel V8.

  • Read the vehicles Owner's Manual for more important feature limitations and information.

  • Vehicle user interface is a product of Google, and its terms and privacy statements apply. Requires the Android Auto app on Google Play and an Android compatible smartphone running Android(TM) 5.0 Lollipop or higher. Data plan rates apply. Android Auto is a trademark of Google LLC.

     

  • 308 horsepower with available 3.6L V6 engine.

  • Colorado 2WD with available Duramax 2.8L Turbo-Diesel 4-cylinder engine. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner's Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • 308 horsepower with standard 3.6L V6 engine.

  • Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner's Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Read the vehicles Owner's Manual for more important feature limitations and information.

  • Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner’s Manual for more information.

  • Chevrolet Infotainment System functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.

  • Vehicle user interface is a product of Apple and its terms and privacy statements apply. Requires compatible iPhone and data plan rates apply. Apple CarPlay is a trademark of Apple Inc. Siri, iPhone and iTunes are trademarks of Apple Inc., registered in the U.S. and other countries.

  • Read the vehicle Owner's Manual for more important feature limitations and information.

  • Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See your vehicle Owner’s Manual for more information.

  • Connected services include navigation services and Remote Access Plan. Services subject to Terms and limitations. Certain services require working electrical system, cell reception, and GPS signal. OnStar links to emergency services.  See onstar.com for details. Availability subject to change.

  • Connected services include navigation services and Remote Access Plan. Services subject to Terms and limitations. Certain services require working electrical system, cell reception, and GPS signal. OnStar links to emergency services.  See onstar.com for details. Availability subject to change.

  • EPA-estimated MPG city/highway: Sonic Sedan with 6-speed manual transmission 27/38; with 6-speed automatic transmission 26/34; Sonic Hatchback with 6-speed manual transmission 26/35; with 6-speed automatic transmission 26/34.

  • Your actual range may vary based on several factors, including temperature, terrain, battery age, and how you use and maintain your vehicle.

  • Read your vehicle Owner's Manual for important feature limitations and information.

  • Certain features require a SiriusXM subscription and the Chevrolet Connected Access plan. See siriusxm.com and onstar.com for details and limitations.

  • Do not use summer-only tires in winter conditions, as it would adversely affect vehicle safety, performance and durability. Use only GM-approved tire and wheel combinations. Unapproved combinations may change the vehicle’s performance characteristics. For important tire and wheel information, go to my.chevrolet.com/learnAbout/chevrolettires or see your dealer.

  • Premier shown seats seven. Standard on L, LS. Available on LT.

  • Read the vehicle Owner’s Manual for more important feature limitations and information.

  • Read the vehicle Owner’s Manual for important feature limitations and information.

  • Standard on all trims:  Automatic Emergency Braking, Lane Keep Assist with Lane Departure Warning, Forward Collision Alert, Front Pedestrian Braking, Following Distance Indicator, Intellibeam Headlamps. Read the vehicle Owner’s Manual for more important feature limitations and information.

  • Read the vehicle Owner's Manual for more important feature limitations and information.

  • Always use seat belts and child restraints.  Children are safer when properly secured in a rear seat in the appropriate child restraint.  See the Owner's Manual for more information.

  • Read the vehicles Owner's Manual for more important feature limitations and information.

  • Chevrolet Infotainment 3 System functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.

  • Read the vehicles Owner's Manual for more important feature limitations and information.

  • On LS models with available front-row split-bench seat.

  • Chevrolet Infotainment System functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.

  • Read the Owner's Manual for important feature limitations and information.

  • Chevrolet Infotainment System functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity to some devices.

  • Read the Owner's Manual for important feature limitations and information.

  • Read the Owner's Manual for important feature limitations and information.

  • Rear Cross Traffic Alert, Rear Park Assist and Lane Change Alert with Side Blind Zone Alert. Read the vehicle Owner’s Manual for important feature limitations and information.

  • Requires AWD and 3.6L engine. Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

  • Read the vehicle Owner's Manual for more important feature limitations and information.

  • Chevrolet Infotainment System functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.

  • Standard on Extended Cab and 2WD Crew Cab Short Box models.

  • Standard on 2WD Crew Cab Long Box and 4WD Crew Cab models.

  • Available on Extended Cab models

  • Available on Crew Cab models

  • Read the vehicle owner's manual for important feature limitations and information.

  • Equipment from independent suppliers is not covered by the GM New Vehicle Limited Warranty. GM is not responsible for the safety or quality of independent supplier alterations.

  • Read the vehicle Owner's Manual for important feature limitations and information.

  • To avoid the risk of injury, never use Recovery Hooks to tow a vehicle. For more information, see the Recovery Hooks section of your Owner's Manual.

  • The system wirelessly charges one compatible mobile device. Some phones have built-in wireless charging technology and others require a special adaptor/back cover. To check for phone or other device compatibility, see my.chevrolet.com/learn or consult your carrier.

  • Read the vehicle Owner’s Manual for important feature limitations and information.

     

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    Read the vehicle Owner’s Manual for important feature limitations and information.

  • To avoid the risk of injury, never use Recovery Hooks to tow a vehicle. For more information, see the Recovery Hooks section of your Owner's Manual.

  • The system wirelessly charges one compatible mobile device. Some phones have built-in wireless charging technology and others require a special adaptor/back cover. To check for phone or other device compatibility, see my.chevrolet.com/learn or consult your carrier.

  • Chevrolet Infotainment System functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.

  • Go to my.chevrolet.com/learnAbout/bluetooth to find out which phones are compatible with the vehicle. Full Bluetooth feature functionality varies by device, model and software version.

  • Vehicle user interface is a product of Apple and its terms and privacy statements apply. Requires compatible iPhone and data plan rates apply. Apple CarPlay is a trademark of Apple Inc. Siri, iPhone and Apple Music are trademarks of Apple Inc., registered in the U.S. and other countries.

  • Vehicle user interface is a product of Google and its terms and privacy statements apply. Requires the Android Auto app on Google Play and an Android compatible smartphone running Android™ 5.0 or higher. Data plan rates apply. Android Auto is a trademark of Google LLC.

  • Read the vehicle Owner’s Manual for important feature limitations and information.

  • The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges.

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