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SKU: BP4002CTC1
BluePrint Engines GM Small Block Compatible 400 c.i. Engine - 500 Horsepower - Base Dressed - Carbureted
$7,949.00
400 c.i. 500 Horsepower Base Dress

Horsepower & Torque: 500 Horsepower / 510 ft. lbs. Torque

Cylinder Heads: BluePrint Engines Aluminum Cylinder Heads

Compression Ratio: 10.3:1

Camshaft: Hydraulic Roller Cam - .553 Intake / .576 Exhaust Lift and 236 Intake / 242 Exhaust Duration @ .050 - 110° LSA

Pistons: Forged

Crankshaft: Forged Steel Crank - 3.750" Stroke and 5.700" Rods

Fuel Recommendation: 91+ Octane

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Financing available at checkout with Affirm

Overview:

BluePrint Engines’ GM Small Block Compatible 400 c.i. Base Dressed engine delivers a hard-hitting 500 horsepower in a classic; carbureted package built for serious street performance. With its big-cube displacement and crisp throttle response, this engine brings brutal acceleration and unmistakable small-block attitude to any build. The Base Dressed configuration gives you the key performance components you need right out of the crate, all backed by BluePrint’s precision machining, dyno-tested reliability, and proven craftsmanship. It’s the perfect foundation for enthusiasts who want true small-block power with old-school simplicity and modern durability.

Description:

  • Horsepower & Torque: 500 Horsepower / 510 ft. lbs. Torque
  • Compression Ratio: 10.3:1
  • BluePrint Engines Aluminum Heads
  • BluePrint Engines Hydraulic Roller Cam
  • BluePrint Engines Forged Crank
  • BluePrint Engines Forged Pistons

Block:

  • BluePrint Engines High Strength Cast Iron Block
  • Manufactured and Machined in the USA!
  • Drilled and Tapped for Clutch Linkage
  • Mech Fuel Pump Provision: Yes
  • Passenger Side Dipstick
  • 1-Piece Rear Main Seal
  • 4-Bolt Main
  • 4.125" Bore

Rotating Assembly:

  • BluePrint Forged Steel Crankshaft
  • 3.750" Stroke
  • 5.700" Connecting Rods w/ 150,000 PSI Bolts
  • Forged Pistons
  • Internally Balanced Front / Externally Balanced Rear 

Cylinder Heads:

  • BluePrint Aluminum Cylinder Heads - HP8103
  • 64cc Chamber
  • 2.08" Intake /1.60" Exhaust Valves
  • 220cc Intake / 67cc Exhaust Runners

Cam Specs:

  • Hydraulic Roller
  • .553 Intake / .576 Exhaust Lift
  • 236 Intake / 242 Exhaust Duration
  • @ .050-110 Degree Lobe Separation

Ignition Timing:

  • 10-16° Initial and Total Timing 32-34° at 3500 RPM

Also Includes:

  • Holley 850cfm Double Pumper Carburetor - BPP04781S
  • Satin Aluminum Intake Manifold - BPP350VINT
  • HEI Ready Run Distributor - BPP350RBK
  • BluePrint Valve Covers - BPP9518
  • BluePrint Dipstick - BPP9420
  • Timing Cover
  • Oil Pump
  • Oil Pan

Notes:

  • Not for EGR
  • The Aftermarket intake manifold installed on this engine may not be compatible with OEM accessory brackets that use intake mounted bosses.
  • The performance aluminum cylinder heads on this engine feature a .500 raised port vs OEM.

WARNING: Cancer and Reproductive Harm
Bragging Rights Included.

EVERY BLUEPRINT ENGINE ACES THE DYNO TEST

We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer in our in-house dyno testing rooms to get our rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range. That’s precisely why our engines sound and run better than our competitors.

All specs, zero speculation: A comprehensive, dyno-generated printout showing your critical engine specs will accompany your delivered engine — every time. No more guessing or wondering what your installed engine’s real-world peak horsepower and torque ratings actually are. Any doubters in the crowd? Simply flash ‘em your exact engine’s dyno results.

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