LS427/570

LS427/570

SKU: 19420191

More Power, Wet-Sump Oiling for the Race-Bred LS7 

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—increases of 65 hp and 70 lb-ft over the production-based LS7 crate engine.

 

Based on the Production LS7 Crate Engine

A new wet-sump oiling system facilitates easier and less costly installation, because the remote oil-tank reservoir for the production-based LS7’s dry-sump system is not required. The engine is now equipped with the popular F-car wet sump oil pan and accompanying LS3 oil pump. The aggressive camshaft calibration in this engine requires the use of LS427/570 Engine Controller and Harness Kit p/n 19420000 (sold separately). Chevrolet Performance recommends 15W50 Mobil 1 engine oil for the LS427/570 engine.

  • Horsepower

    570 HP

  • Torque

    540 Lb-Ft

  • Tech Specs

    • 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 92 mm)
    • Block (P/N 12602689): Cast aluminum block with 6-bolt, cross-bolted main caps
    • Crankshaft (P/N 12611649): 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 exhaust
    • Camshaft Duration (@.050 in.): 227º intake/242º exhaust
    • Camshaft Lobe Separation Angle: 116º
    • 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: 7000 rpm
    • Balanced: Internal
C$17,596.11 Regular Price
C$15,496.11Sale Price