GM Performance 6.0L LS Crate Engine 452 HP

LS364/450 Crate Engine | Chevy Performance Parts -- 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.

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.

The LS364/450 Crate Engine has a high-lift LS6 camshaft and the deep-breathing LS3 aluminum cylinder heads.

• Crate Engine - 364 Cubic Inch - 452 HP - GM LS-Series
• Sold as Each
• Part Number: 19434650

Note: Parts Intended for Competition Use only. See additional information under the Specifications tab.

LS364/450 Tech Specs

• Part Number: 19434650
• 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

  Oversized    Air Restricted      Truck Freight Only (additional shipping charges apply)

Specifications

Parts Intended for Competition Use Only

This part has been specifically designed for Off-Highway application only. Since the installation of this part may either impair your vehicle’s emission control performance or be uncertified under current Motor Vehicle Safety Standards, it should not be installed in a vehicle used on any street or highway. Additionally, any such application could adversely affect the warranty coverage of such an on-street or highway vehicle. This long block uses an engine control system based on a 24X crankshaft trigger and a 1X camshaft trigger system that was used on Chevrolet Gen III small block V8 engines from 1997 thru 2006. For most customers this will be a replacement for an existing application using a Gen III engine. This will allow the customer to transfer many of the sensors, exhaust system, engine mounts, etc. from the current vehicle to this long block. This long block uses the higher flowing rectangular cylinder head intake ports which were not available for Gen III engines. These heads were used on Gen IV LS3 engines. A new intake manifold will be required from a Gen IV truck or car that used a rectangular intake port. Most 6.0-6.2 Liter Gen IV intake manifolds use this type of rectangular intake port.

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.