ATK Engines; High Performance Crate Engine; HP42C; Stage 3 Complete GM Dart Big M Big Block V8 540/660+HP/650+TQ

ATK has been building engines for over 75 years and has assembled this dyno-proven crate engine package to power up your ride. Classic Industries® dedication to bringing the highest quality products on the market, combined with ATK's industry-leading warranty make these Chevy ATK crate engines an obvious choice.

All of ATK manufacturing facilities have achieved both QS-9000 and ISO 9001 certification levels, one of the few engine remanufacturers in the world to have done so. In addition, ATK parent company VEGE Motoren has also achieved ISO 9001 certification. This is particularly significant as it represents both an engineering and a manufacturing certification.

• Important: Not for use in pollution controlled vehicles. Computer controlled vehicles may need updated chips or other modifications.

• Special order, must be prepaid. Non-returnable. Non-refundable.
• Shipped anywhere in the Continental United States for $175.00.
• 2 Year / Unlimited Mileage Warranty.

All ATK Stage Three motors are dyno proven, built from top quality parts and come with oil pan, timing cover, valve covers, distributor with spark plugs and wires, a performance intake manifold, performance carburetor, fuel pump, water pump, flex plate, and balancer all-pre installed.

This monster 540 ci Dart Big "M" engine produces over 660+ hp and 650+ lbs of torque in a dyno-tested and tuned package.

• HP: 660+
• Torque: 650+
• Engine type: Dart Big "M" Block V8
• Displacement: 540 ci
• Block: Dart 9.8" deckheight
• Crankshaft: Scat 4340 forged steel
• Bore/Stroke: 4.500 x 4.250
• Rods: Scat H-beam
• Pistons: Forged
• Rings: Moly
• Camshaft type: HYD roller
• Camshaft lift: Custom
• Camshaft duration @.50: custom
• Cylinder heads: Dart Pro Series 1
• Chamber size: 121 cc
• Valve size: 2.25 in x 1.88 ex
• Intake runner volume: 325 cc
• Compression ratio: 10.1:1
• Rocker arms: 1.7:1 full roller
• Induction: Performance manifold/carbureted
• Recommended fuel: 92 octane
• Ignition timing: 36 degrees total advance
• Max RPM: 5800
• Dyno proven: Yes

• 1955 - 1957 Chevrolet Bel Air
• 1967 - 2002 Chevrolet Camaro
• 1986 - 1993 Chevrolet Caprice
• 1962 - 1968 Chevrolet Chevy II Nova
• 1957 - 1957 Chevrolet Del Ray
• 1958 - 1996 Chevrolet Impala
• 1955 - 1957 Chevrolet Nomad
• 1969 - 1979 Chevrolet Nova
• 1955 - 1957 Chevrolet One-Fifty Series
• 1955 - 1957 Chevrolet Two-Ten Series

• 1930 - 2008 Chevrolet Truck

• 1930 - 2008 GMC Truck

• 1967 - 2002 Pontiac Firebird