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Chevrolet Performance LC9 5.3L GM Crate Engine

Brand: Chevrolet Performance

Part Number: 19259918

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LC9 5.3L Crate Engine

320 hp @ 5,400 rpm / 335 lb.-ft. @ 4,000 rpm

 

Affordable LS Power

Our LC9 5.3L crate engine makes a great, affordable alternative to a used LS engine for your project. It is based on the workhorse power plant used in hundreds of thousands of GM trucks, including the Chevrolet Silverado and Suburban. It’s rated at 320 horsepower and tuned to deliver exceptional torque at low rpm.

The LC9 features a lightweight aluminum block and comes with the intake manifold, throttle body and fuel rail. It’s a great choice for hot rod cruisers and off-roader projects, where torque and dependability is the priority over maximum horsepower.

We also offer the LC9 in E-ROD emissions-compliant kits for 2WD and 4WD applications, as well as Connect & Cruise crate powertrain systems for 2WD and 4WD applications. Connect & Cruise systems include a four-speed automatic transmission and all necessary controllers and wire harnesses.

 

LC9 5.3L Tech Specs:
Part Number: 19259918
Engine Type: LS-Series Gen IV Small-Block V-8
Displacement (cu in): 327 (5.3L)
Bore x Stroke (in): 3.620 (96 x 92 mm)
Block (P/N 12623964): Cast-aluminum with 6-bolt, cross-bolted main caps
Crankshaft (P/N 19244057): Nodular iron
Connecting Rods (P/N 12568734): Powdered metal steel
Pistons (P/N 12571545): Hypereutectic aluminum
Camshaft Type (P/N 12561721): Hydraulic roller
Camshaft Lift (in): .467 intake / .479 exhaust
Camshaft Duration (@.050 in): 196° intake / 201° exhaust
Cylinder Heads (P/N 12639063): Aluminum; cathedral port
Valve Size (in): 1.890 intake / 1.550 exhaust
Compression Ratio: 9.5:1
Rocker Arms (P/N 10214664): Investment cast, roller trunnion
Rocker Arm Ratio: 1.7:1
Recommended Fuel: 87 octane
Maximum Recommended rpm: 6,000
Reluctor Wheel: 58x
Balanced: Internal

 

Recommended Transmission:  Hydra-Matic 4L65-E Four-Speed Automatic P/N 19260380

 

Installation Notes:
• 14" automatic transmission flexplate included
• Components to complete FEAD are listed on page 262 of the Chevrolet Performance Parts Catalog
• Check hood clearance for interference
• Chevrolet Performance muscle car oil pan kit P/N 19212593 may be required for installation on older vehicles
• Intended for pre-1976 street vehicles or off-road vehicles
• Not intended for marine applications
• Requires LC9 5.3L controller kit P/N 19259914 for engine operation (not included)


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