When you are looking for hassle-free driving experience, the ATK HP89C-EFI Chevy 350CI Engine 390HP Complete is the one to choose. Troublesome cold starts or harsh driving conditions? The FiTech Self-Learning EFI system has got your back, as it regulates engine performance and fuel efficiency through electronic means. The engine comes complete from the throttle body to the oil pan.
- Horsepower: 390
- Torque: 420 lbs./ft.
- Block: OE roller block 4 bolt main 1pc seal 1996-2000
- Bore/Stroke: 4.040 x 3.480
- Displacement: 350 C.I.D.
- Crankshaft:OE Reground external balance rear of the crank/internal balance front of the crank
- Connecting Rods: OE Powder Metal 5.700" Stock Bolts
- Pistons: Hypereutectic 10:1 Compression
- Piston Rings: Moly Rings
- Compression Ratio: 10.1:1 Compression
- Camshaft: Hydraulic Roller
- Camshaft Specifications: 220/224 @050 .528in/.536ex 112LSA
- Camshaft Bearings: Installed & Clocked to OEM Position
- Cylinder Heads: ATK High Performance aluminum with 2.020 in. /1.600 ex. valves
- Freeze Plugs: Brass Installed & Sealed
- Rocker Arms: Billet Roller Rockers 1.6 Ratio
- Oil Galley Plugs: Installed & Sealed
- Oil Pan: Rear sump 5qt (not for Chevelles with steering behind crossmember, some corvettes and 62-67 chevy II’s)
- Weight: 430
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 350 375 HP Stage 3 Long Block Crate Engines with EFI
• Oil: 10W30
• Oil Filter: Wix or K&N Recommended Per Your Application
• Fuel Delivery: Fitech Go Street EFI 400HP (throttle body, wire harness and hand held unit included)
• Intake Manifold: Weiand Stealth Dual Plane #8150
• 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 5/8 Headers
• Fuel System: FITECH Inline Electric fuel pump kit, Command Center or Custom In Tank Electric pump system (No fuel system provided)
• Fuel: 91+ Octane
• Ignition: MSD HEI #8362
• Automatic Transmission Stall Converter: 2000-2500
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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