.jpg&width=640&format=webp)
.jpg&width=640&format=webp)
.jpg&width=640&format=webp)
Horsepower & Torque: 436 Horsepower / 443 ft. lbs. Torque
Compression Ratio: 10:1 with 64 cc heads and .041 in. Head Gasket
Camshaft: Hydraulic Roller Cam - Lift with 1.6 Rockers - .544 Intake / .555 Exhaust Lift and 230 Intake / 236 Exhaust Duration @ .050 - 110° LSA
Pistons: Hypereutectic
Crankshaft: Cast Crank - 3.750" Stroke and 5.700" Rods
Fuel Recommendation: 91+ Octane
- Description
- Engine Specs
- Parts & Accessories
- Warranty
Overview:
BluePrint Engines’ Small Block Plus 383 delivers the perfect blend of street manners and hard-hitting performance, now with full customization to match your build. This stroker wakes up any classic or hot rod with big torque, crisp throttle response, and the signature reliability BluePrint is known for. With premium components, precision machining, and dyno-proven power, the Small Block Plus 383 gives builders a ready-to-run upgrade that’s powerful, responsive, and tailored to your exact vision, mile after mile.
Description:
- Horsepower & Torque: 436 Horsepower / 443 ft. lbs. Torque
- Compression Ratio: 10.0:1
- BluePrint Engines Hydraulic Roller Cam
- BluePrint Engines Hypereutectic Pistons
- BluePrint Engines Cast Crankshaft
Block:
- BluePrint Engines High Strength Cast Iron Block
- Align Honed on Computer-Controlled Machine to Within .0002 Straightness and Roundness
- Cylinders are Sonic Tested for Thickness
- Passenger Side Dipstick
- 4 Bolt Main
- 4.00'' Bore
Rotating Assembly:
- Cast Crankshaft
- 3.750" Stroke
- New Rods with 150,000 PSI Bolts
- Hypereutectic Pistons, 12cc Dish
- Hastings Moly Rings
Cam Specs w/ 1.6 Rocker Arm:
- Hydraulic Roller Cam
- .544 Intake / .555 Exhaust Lift
- 230 Intake / 236 Exhaust Duration
- @ .050-110 Degree Lobe Separation
Ignition Timing:
- 34 Degrees Total (at 3500 RPM)
Also Includes:
- Heavy Duty Single Roller Timing Set
- High Volume Oil Pump
- Harmonic Balancer
- Timing Cover
- Oil Pan
Notes:
- This engine features a true 4-inch bore, which mathematically yields 377 CID with a 3.75-inch stroke.
- This engine requires a weighted 8'' harmonic balancer (included), and late 350ci weighted flexplate/flywheel.
- The horsepower and torque numbers derived from Dyno testing with a 750cfm Carb, and with H8002K Cylinder head installed.
- NOT for use in pollution-controlled vehicle.
Blocks
- BluePrint Engines High Strength Cast Iron Block
- Align Honed on Computer-Controlled Machine to Within .0002 Straightness and Roundness
- Cylinders are Sonic Tested for Thickness
- Passenger Side Dipstick
- 4 Bolt Main
- 4.00'' Bore
Cylinder Heads
N/A
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
- Cast Crankshaft
- 3.750" Stroke
- New Rods with 150,000 PSI Bolts
- Hypereutectic Pistons, 12cc Dish
- Hastings Moly Rings
Cam Specs
w/ 1.6 Rocker Arm:
- Hydraulic Roller Cam
- .544 Intake / .555 Exhaust Lift
- 230 Intake / 236 Exhaust Duration
- @ .050-110 Degree Lobe Separation
Stall Converter
2000-2400 RPM
Also Includes
- Heavy Duty Single Roller Timing Set
- High Volume Oil Pump
- Harmonic Balancer
- Timing Cover
- Oil Pan
Notes
- This engine features a true 4-inch bore, which mathematically yields 377 CID with a 3.75-inch stroke.
- This engine requires a weighted 8'' harmonic balancer (included), and late 350ci weighted flexplate/flywheel.
- The horsepower and torque numbers derived from Dyno testing with a 750cfm Carb, and with H8002K Cylinder head installed.
- NOT for use in pollution-controlled vehicle.
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 (Not Included) | N/A |
|---|---|
| Spark Plug (Not Included) | BPP7938 - NGK 7938 BKR5E |
| Harmonic Balancer | BPP400L |
| Flexplate/Flywheel (Not Included) | BPP871006 - BPP399173 - BPP300116 |
| Fuel Recommendation | 91+ Octane or Higher Depending on Cylinder Head Choice |
| 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.