Specifications:
Power: 380 HP @ 5400 RPM, 410 ft. lbs. of torque @ 4300 RPM
Displacement: 350 CID, 5.7L
Bore x Stroke: 4.00” x 3.48”
Compression Ratio: 9.6:1
Recommended Fuel: 92 Octane
Block: Cast Iron, 1 piece rear seal, 4-bolt main caps
Crankshaft: Forged Steel
Connecting Rods: Powdered Metal Steel
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .474” Intake / .510” exhaust
Cam Duration @ .050”: 208 deg. Intake / 221 deg. Exhaust
Lobe Separation: 112 Degree
Cylinder Heads: Dual Bolt Pattern Fast Burn Aluminum, 3/8” screw-in rocker studs
Combustion Chamber: 62cc
Valves: .200” Intake/ 1.55” Exhaust
Rocker Arms: Stamped Steel, 1.5:1 Ratio
Valve Springs: 12551483
Balance: Internal
Maximum GM Recommended RPM: 5800
Ignition Timing: Base 10 degrees BTDC, 32 degrees total
Engine Includes:
• Fully GM assembled long block
• Polished Finned Aluminum Valve Covers
• Polished Finned Air Cleaner
• Oil pump, pick-up and oil pan
• Aluminum Edelbrock Dual Quad Intake
• Edelbrock 500CFM Carbs
• Performance Fuel Pump with Plumbing to Carb
• Distributor, Wires, Looms and Spark Plugs
• 14” Auto Trans Flexplate
• HD Starter with Bolts
• 8” Harmonic Balancer
• Front timing cover
• Cast Iron Long Water Pump
• Oil Filter and Adapter
• Passenger Side RH Oil Dipstick and Tube
Warranty:
General Motors limited 2 year / 50,000 mile parts & labor warranty. Click on Document tab above for full details.
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GM FB385 Engine and Transmission Combo Packages
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GMP-12496769-4B Dual Quad FB385 with Black Finish
GMP-12496769-2- Fully Assembled Engine with Black Finish
GMP-24502609-3 Fully Assembled GM ZZ4 Engine with Polished Finish
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