BluePrint MBP3830CT GM Marine SB 383 Engine 405HP Long Block

BluePrint Engines Marine GM 383 C.I.D. 405 HP Base Stroker Long Block Engines with Cast Components

Need a replacement engine for your boat? BluePrint Engines offers marine GM 383 c.i.d. 405 hp stroker long block crate engines. These engines combine performance, speed, and reliability for a powerful marine experience.

BLOCK:

• 4-bolt main block
• Passenger side dipstick
• Square and parallel decked
• Align-honed main bearing bore
• Cylinders honed on computer-controlled machine to within .0002 in. straightness and roundness
• Cylinders are sonic tested for thickness

ROTATING ASSEMBLY:

• SCAT cast iron crankshaft
• Keith Black hypereutectic pistons
• GM heavy beam connecting rods
• Hastings moly rings
• Balanced rotating assembly
• Melling high-volume oil pump
• COMP Cams roller lifter camshaft
• Heavy-duty double roller timing set

CYLINDER HEADS:

• Cast iron Vortec heads
• Hardened retainers and springs
• 2.02 in. swirl-polished intake valves
• 1.60 in. swirl-polished exhaust valves
• Hardened pushrods
• Brezinski cast iron marine intake manifold
• 9.5:1 compression ratio

ALSO INCLUDES:

• BluePrint Signature Series polished aluminum valve covers
• Rubber-coated steel oil pan
• Chrome timing chain cover
• Long slot rocker arms with positive locking nuts
• Dyno-tested and shipped with results

Select BluePrint Engines are imported to order via airfreight, with delivery times typically ranging from 1 to 15 days. For an accurate ETA on specific models, please don't hesitate to contact us.

• UPC: 00887753744302
• Crate Engine Family: Chevy Small Block
• Actual Engine Displacement: 6.3L/383
• Crate Engine Cylinder Head Material: Cast iron
• Engine Block Material: Cast iron
• Assembled: Yes
• Engine Balance: Internal/External
• Cam Style: Solid roller, OE roller
• Rear Main Seal Style: 1-piece
• Intake Manifold Included: Yes
• Intake Manifold Style: Carbureted
• Cylinder Heads Included: Yes
• Carburetor Included: No
• Throttle Body Included: No
• Distributor Included: No
• Oil Pan Included: Yes
• Valve Covers Included: Yes
• Timing Cover Included: Yes
• Water Pump Included: No
• Harmonic Balancer Included: No
• Flexplate Included: No
• Flywheel Included: No
• Air Cleaner Included: No
• Spark Plugs Included: No
• Spark Plug Wires Included: No
• Computer Included: No
• Wiring Harness Included: No
• Supercharger Included: No
• Remanufactured: Yes
• Quantity: Sold individually
• Notes: 4-bolt main block.