Be it a drag racing or a cruise down the streets, this ATK HP55M Chevy 383 Stroker Mid-Dress Engine 500HP has got everything you need. It is hand assembled by experts using rugged bulletproof components to last longer, while delivering peak performance. This crate engine produces 500 horsepower and 505 ft.lb torque for improves speed, acceleration and consistency.
- Horsepower: 500
- Torque: 505 lbs./ft.
- Block: Seasoned OE 4 Bolt Main 1pc Seal Roller Block P/S Dipstick
- Bore/Stroke: 4.040 x 3.750
- Displacement: 383 C.I.D.
- Crankshaft: Scat 4340 Forged 3.750" Stroke Externally Balanced Rear/Internal Front 1pc.
- Connecting Rods: Scat 4340 Forged H Beam 5.700" ARP 8740 Bolts
- Pistons: Forged Flat Top
- Piston Rings: Moly Rings
- Compression Ratio: 10.1:1 Compression
- Camshaft: Hydraulic Roller
- Camshaft Specifications: 237/245 @050 .597in/.597ex 112LSA
- Camshaft Bearings: Installed & Clocked to OEM Position
- Cylinder Heads: Pro-Filer Aluminum 70cc/195cc 2.02/1.60
- Freeze Plugs: Brass Installed & Sealed
- Rocker Arms: Billet Aluminum 1.6 Full Roller
- Oil Galley Plugs: Installed & Sealed
- Oil Pan: OE 5qt.
- Weight: 375
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 383 Stroker 500 HP Stage 2 Long Block Crate Engines
• Oil: 10W30
• Oil Filter: Wix or K&N Recommended Per Your Application
• Fuel Delivery: Quick Fuel Carburetor 750cfm #Q-750
• Intake Manifold: Edelbrock Performer RPM Air-Gap Dual Plane #7501
• Spark Plugs: Autolite #3923
• Spark Plug Gap: .035"
• Harmonic Balancer/Damper: POWERBOND Internally Balanced 8" #PB1046-N
• Flex Plate / Flywheel: Externally Balanced 168 Tooth
• Timing: 34-36 Degrees Total
• Water Pump: Long Water Pump
• Firing Order: 1 8 4 3 6 5 7 2
• Exhuast: 1 3/4 Headers
• Fuel Pump: Holley 110GPH Mechanical #12-327-11
• Fuel: 91+ Octane
• Ignition: MSD Pro Billet #85551
• Automatic Transmission Stall Converter: 2800+
• Carburetor: Quick Fuel 750cfm mechanical secondary no choke #793-Q-750
• Fuel Pump: Holley Mechanical 110gph #510-12-327-11
• Spark Plugs: Autotile #417-3923
• Spark Plug Wires: 8mm
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.
Shipping is free and lift gate will be provided.
Eastwood Offers Free Lifetime Technical Support
Attention California Residents - Proposition 65
WARNING - Cancer and Reproductive Harm - www.P65Warnings.ca.gov