Click on image to zoom

BP3830CTC1S - BluePrint Partial Dressed SBC 383CID 405HP Long Block Crate Engine 1pc Rear Seal

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Shipping: FREE 48 State Truck Freight Shipping (International shipping will require freight quote)
Pricing: $3,795.88

Customize Your Item

- Additional Shipping Options -
 * required
Free Shipping!


BluePrint GM engines give you brute, honest horsepower that'll leave others in your rear view mirror. Produced from hand-picked, seasoned four-bolt main blocks and precision built to exacting specifications.

Power: 405 HP @ 5500 RPM, 440 ft. lbs. of torque @ 4200 RPM
Displacement: 383 CID
Bore x Stroke: 4.040” x 3.75”
Compression Ratio: 9.5:1
Recommended Fuel: 91 Octane
Block: Cast Iron, 1 piece rear seal, 4-bolt main caps with passenger side oil dip stick hole, brass freeze plugs.
Crankshaft: Cast Steel, polished, stress relieved and shot peened with chamfered oil oils
Connecting Rods: Heavy Beam with 150,000 psi bolts
Pistons: Hypereutectic Aluminum
Camshaft: Steel Flat Tappet
Cam Lift: .487” Intake / .508” Exhaust
Cam Duration @ .050”: 234 deg. Intake / 244 deg. Exhaust
Lobe Separation: 112 Degree
Cylinder Heads: Cast Iron Vortec.
Combustion Chamber: 64cc
Valves: 2.02” Intake/ 1.60” Exhaust
Rocker Arms: Stamped Steel, 1.5:1 Ratio
Valve Springs: 1.25” Diameter
Balance: External
Ignition Timing: Base 10 degrees BTDC, 32 degrees total

Engine Includes:
• Fully assembled long block
• Stamped Steel Chrome Valve Covers
• Melling High Volume Oil pump, pick-up and oil pan
• Aluminum Dual Plane Performance Intake
• Edelbrock Performer 750CFM Carb with manual choke
• MSD Distributor
• Front timing cover with 8” timing pointer
• Oil Filter Adapter
• Dyno Test Sheet

BluePrint limited 30 month / 50,000 mile parts & labor warranty. Click Here to view or download warranty form.

Application List


Shipping Information

  • Item Requires Shipping
  • 500.0 lbs.
  • W5.0000” x H5.0000” x L5.0000”
  • Free Shipping!
  • FREE 48 State Truck Freight Shipping (International shipping will require freight quote)

Customer Reviews

Comment Total Reviews (0)

Write the First Review!

You must login to post a review.

  • We don’t just want your business today. We want to EARN your business for LIFE!
  • USA Owned, Operated & Employed
  • Installers & Resellers Click Here to Apply
  • We Specialize In:
    • GM LS Conversions
    • Engine & Trans Combo Kits
    • Unique Ready to Run Engines
  • Have a question?
  • 888-748-4655 Mon-Fri 8AM-6PM EST
  • Click above for 24/7 Live Chat Service.