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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: Steel Crank - 3.750" Stroke and 5.700" Rods
Fuel Recommendation: 91+ Octane
- Description
- Engine Specs
- Parts & Accessories
- Warranty
Overview:
BluePrint Engines’ 400 c.i. Deluxe Dressed Small Block brings 500 horsepower of classic, carbureted muscle to any GM-compatible build, fully outfitted and ready to shine. This powerhouse delivers big-block attitude in a small-block footprint, combining brute strength with the crisp throttle response only a carbureted setup can provide. With premium components, precision assembly, and a dressed package, show-ready finish, this engine gives builders a turn-key performance upgrade that looks as impressive as it runs. Perfect for hot rods, muscle cars, and custom projects that demand bold power and unmistakable style.
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
- Thermostat and Thermostat Housing
- Long Style Water Pump - BPP67265
- Mechanical Fuel Pump - BPP61073
- BluePrint Valve Covers - BPP9518
- BluePrint Dipstick - BPP9420
- 14" BluePrint Air Cleaner
- Spark Plugs and Wires
- Harmonic Balancer
- Timing Cover
- Oil Pump
- Oil Pan
Notes:
- Not for EGR
- The Aftermarket intake manifold and heads installed on this engine may not be compatible with OEM accessory brackets that use intake or exhaust mounted bosses.
- The performance aluminum cylinder heads on this engine feature a .500 raised port vs OEM.
Blocks
- 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
Cylinder Heads
- BluePrint Aluminum Cylinder Heads - HP8103
- 64cc Chamber
- 2.08" Intake / 1.60" Exhaust Valves
- 220cc Intake / 67cc Exhaust Runners
Ignition Timing
Initial Timing 10-16 - Total Timing 32-34
Spark Plug
.035 in.
Firing Order
1,8,4,3,6,5,7,2
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
Cam Specs
- Hydraulic Roller
- .553 Intake / .576 Exhaust Lift
- 236 Intake / 242 Exhaust Duration
- @ .050-110 Degree Lobe Separation
Stall Converter
2400+ RPM
Also Includes
- Holley 850cfm Double Pumper Carburetor - BPP04781S
- Satin Aluminum Intake Manifold - BPP350VINT
- HEI Ready Run Distributor - BPP350RBK
- Thermostat and Thermostat Housing
- Long Style Water Pump - BPP67265
- Mechanical Fuel Pump - BPP61073
- BluePrint Valve Covers - BPP9518
- BluePrint Dipstick - BPP9420
- Spark Plugs and Wires
- Harmonic Balancer
- Timing Cover
- Oil Pump
- Oil Pan
Notes
- Not for EGR
- The Aftermarket intake manifold and heads installed on this engine may not be compatible with OEM accessory brackets that use intake or exhaust mounted bosses.
- The performance aluminum cylinder heads on this engine feature a .500 raised port vs OEM.
Your BluePrint engine was dyno tested with the parts and specifications listed below. If you prefer to install a different part, your engine may not produce the horsepower recorded on your dyno sheet.
Parts & Accessories Specs
| Intake Manifold | Dual Plane, Satin Aluminum Intake Manifold - BPP350VINT |
|---|---|
| Spark Plug | BPP7938 - NGK 7938 BKR5E |
| Harmonic Balancer | BPP350 |
| Flexplate/Flywheel (Not Included) | BPP871006 - BPP399173 - BPP300116 |
| Fuel Recommendation | 91+ Octane |
| Recommended Service Oil | BPP10W30 |
| Recommended Oil Filter | BPP51061 |
| Total Oil Capacity with Production Oil Pan, and Correct Filter | 5 Quarts |
Header Partners:
- Click Here for our Header Partners and recommendations.
Better Than the Rest.
The satisfaction of our customers is our highest priority at BluePrint Engines. Every engine we build is assembled with premium components, balanced to within two grams, and dyno-tested to verify real horsepower and torque before it leaves our facility.
All BluePrint products include warranty protection designed specifically for how they're used. Our complete crate engines carry our industry-leading 30-month / 50,000-mile warranty, offering the confidence and peace of mind serious builders expect. Other BluePrint products—including bare blocks, marine engines, transmissions, race applications, and cylinder heads—feature warranty coverage tailored to their intended use and operating conditions.
For full terms and specific coverage by product category, download our warranty guide below. It contains complete details, limitations, and instructions for warranty registration and claims.
Already Own this engine?
Protect your investment by registering your warranty today. Register below to ensure coverage and stay up to date on important service information.
Register NowEVERY 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.