LS364/450


KICK YOUR PERFORMANCE
INTO OVERDRIVE.

OFFER VALID 1/1/22 TO 12/31/22.

$250 rebate on the purchase of a Chevrolet Performance Transmission within 180 days after the purchase of any Chevrolet Performance Crate Engine

KICK YOUR PERFORMANCE
INTO OVERDRIVE.

OFFER VALID 1/1/22 TO 12/31/22.

$250 rebate on the purchase of a Chevrolet Performance Transmission within 180 days after the purchase of any Chevrolet Performance Crate Engine

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

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VISIT OUR BRANDS FOR YOUR OE NEEDS

Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.

  • Must be purchased from a participating U.S. dealer or Chevrolet Performance Authorized Reseller. Offer valid on purchase of a Chevrolet Performance Transmission and a Chevrolet Performance Crate Engine. See gmpartsrebates.com for details and rebate form. Rebate valid when transmission is purchased within 180 days of verified crate engine purchase (proof of purchase required). Limit three rebates per mailing address. Stackable with most other rebate offers (excluding Connect & Cruise). Transmission must be purchased between 1/1/22 and 12/31/22. Rebate submissions must be postmarked or submitted online no later than 30 days after both are purchased. Allow 6 to 8 weeks for delivery of debit card.     **Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.

  • Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.

  • 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.

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