Roar through the streets with this ATK Chevy 540CI Engine. Built with top quality components, this crate engine boasts 660+ horsepower that will make your car a real beast. Forged internals make this engine very strong, and the sealed freeze plugs and oil galley plugs ensure reliability.
- Horsepower: 660+
- Torque: 650+ lb/ft
- Block: Dart Big M 9.8 4 Bolt Main 2pc Seal
- Bore/Stroke: 4.500 x 4.250
- Displacement: 540 C.I.D.
- Crankshaft: Manley 4340 Forged 4.250" Stroke Internally Balanced 2pc.
- Connecting Rods: Manley 4340 Forged H Beam 6.385" ARP 8740 Bolts
- Pistons: Forged
- Piston Rings: Moly Rings
- Compression Ratio: 10.1:1 Compression
- Camshaft: Hydraulic Roller
- Camshaft Specifications: 243/249 @050 .640in/.640ex 112LSA
- Camshaft Bearings: Installed & Clocked to OEM Position
- Cylinder Heads: Dart Aluminum 121cc/325cc 2.25/1.88
- Freeze Plugs: Brass Installed & Sealed
- Rocker Arms: Howards Billet Aluminum Full Roller 1.7 Ratio
- Oil Galley Plugs: Installed & Sealed
- Oil Pan: Moroso 6qt.
ATK specializes in muscle. With the highest quality internal parts and Dyno Proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty.
ATK High Performance GM 540 660+ HP Stage 3 Long Block Crate Engines
• Oil: 10W30
• Oil Filter: Wix or K&N Recommended Per Your Application
• Fuel Delivery: Quick Fuel Carburetor 850cfm #Q-850
• Intake Manifold: Edelbrock Performer RPM Air-Gap Dual Plane #7562
• Spark Plugs: Autolite #AR3934
• Spark Plug Gap: .035"
• Harmonic Balancer/Damper: Professional Products Internally Balanced 8" #80004
• Flex Plate / Flywheel: Internally Balanced 168 Tooth
• Timing: 34-36 Degrees Total
• Water Pump: Long Water Pump
• Firing Order: 1 8 4 3 6 5 7 2
• Exhuast: 2 1/8 Headers
• Fuel Pump: Holley 130GPH Mechanical #12-454-13
• Fuel: 91+ Octane
• Ignition: MSD Pro Billet #85551
• Automatic Transmission Stall Converter: 3000+
Disclaimer: The parts listed are ATK’s recommendations of parts to be used to obtain our power figures listed. Power figures can vary based on parts used by the end user. It is the customer’s responsibility to verify components will work for their application. Some modifications to the vehicle may be required using these and or other aftermarket parts.
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