LS427/570 Chevrolet Performance Crate Engine Wet Sump

$15,993.33 $12,534.50

  • 570 HP & 540 Lb.-Ft.
  • Wet-Sump
  • More Power and Easier Installation than LS7

Have your engine dyno tested by one of our professional engine builders to ensure everything is properly broken in. We can dyno your engine with your components to make sure everything is working harmoniously before shipping you the whole assembly drained and ready to install.

L427/570 Crate Engine

19421004 Chevrolet Motor

More Power, Wet-Sump Oiling for the Race Bred LS

Chevrolet Performance’s new LS427/570 builds on the track-bred performance of the LS7 engine and enhances it in two important ways: more power and easier installation.  A new, higher-lift camshaft helps it produce 570 horsepower and 540 lb-ft. of torque which is an increase of 65 hp and 70 lb-ft over the production-based LS7 crate engine.

Weight 522 lbs



LS427/570 Crate Engine

P/N 19421004

A new wet-sump oiling system facilitates easier and less costly installation, because the supporting components for the production-based LS7’s dry-sump system are not required.  This engine comes assembled with the 14″ Camaro Z/28 168-tooth manual transmission wheel.  Use with LS427 engine controller P/N 19420000 (sold seperately)

Chevrolet recommends 15W50 Mobil 1 engine oil for the LS427/570 engine.


  • Part Number 19421004
  • Engine Type: LS-Series Small Block V-8
  • Displacement (cu. in.): 427 (7.0L)
  • Bore x Stroke (in.): 4.125 x 4.000 (101.6 x 92mm)
  • Block (P/N 12602689): Cast aluminum block with 6-bolt, cross bolted main caps
  • Crankshaft (P/N 12602689): Forged Steel
  • Connecting Rods (P/N 12661677): Forged titanium
  • Pistons: Hypereutectic Aluminum
  • Camshaft Type (P/N 19419859): Hydraulic Roller
  • Valve Lift (in.): .591 intake/ .590 exhuast
  • Camshaft Duration (@.050 in.): 227 inatke/242 exhaust
  • Camshaft Lobe Seperation Angle: 116
  • Cylinder Heads: CNC-ported LS7-style ports with 70 cc combustion chambers
  • Valve Size (in.): 2.200 titanium intake, 1.610 sodium-filled exhaust
  • Compression Ratio: 11.0:1
  • Rocker Arms: Investment-cast, roller bearing trunnion
  • Rocker Arm Ratio: 1.8:1 (offset intake)
  • Recommended Fuel: Premium pump
  • Maximum Recommended RPM: 7,000 RPM
  • Balanced: Internal

Chevrolet Performance Crate Engines include a 24-month or 50,000-mile (80,000 kilometer) limited warranty.

Click here for more detailed warranty information.


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