GM Small Block Compatible 383 c.i. Power Adder Engine - 415 Horsepower - Long Block
GM Small Block Compatible 383 c.i. Power Adder Engine - 415 Horsepower - Long Block
GM Small Block Compatible 383 c.i. Power Adder Engine - 415 Horsepower - Long Block
GM Small Block Compatible 383 c.i. Power Adder Engine - 415 Horsepower - Long Block
GM Small Block Compatible 383 c.i. Power Adder Engine - 415 Horsepower - Long Block
GM Small Block Compatible 383 c.i. Power Adder Engine - 415 Horsepower - Long Block

GM Small Block Compatible 383 c.i. Power Adder Engine - 415 Horsepower - Long Block

SKU: BP38317CT1

GM Small Block Compatible 383 c.i. Power Adder Engine - 415 Horsepower - Long Block

SKU: BP38317CT1

Horsepower & Torque: 415 Horsepower / 430 FT. LBS. Torque

Cylinder Heads: BluePrint Engines Aluminum Cylinder Heads

Compression Ratio: 8.9:1

Camshaft: Hydraulic Roller Cam - .536 Intake / .555 Exhaust Lift and 224 Intake / 236 Exhaust Duration @ .050 - 113° LSA

Pistons: Forged

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

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Description:

  • Horsepower & Torque: 415 Horsepower / 430 FT. LBS. Torque
  • Compression Ratio: 8.9:1
  • Aluminum Heads
  • Hydraulic Roller Cam
  • Forged Crank
  • Forged Pistons

Block:

  • BluePrint Engines High Strength Cast Iron Block
  • Manufactured and Machined in the USA!
  • 4-Bolt Main
  • 4.000"
  • 1-Piece Rear Main Seal
  • Mech Fuel Pump Provision: Yes
  • Passenger Side Dipstick
  • Drilled and Tapped for Clutch Linkage

Rotating Assembly:

  • New BluePrint Forged Crankshaft
  • 3.750" Stroke
  • Forged I-beam 5.700" Connecting Rods
  • Forged Pistons
  • Externally Balanced Front and Rear

Cylinder Heads:

  • BluePrint Aluminum Cylinder Heads - H8002K
  • 64cc Chamber
  • 2.02" Intake / 1.60" Exhaust Valves
  • 195cc Intake / 75cc Exhaust Runners

Cam Specs:

  • Roller Cam
  • .536 Intake / .555 Exhaust Lift
  • 224 Intake / 236 Exhaust Duration
  • @ .050-113 Degree Lobe Separation

Ignition Timing:

  • Initial Timing 10-16 ° and Total Timing 32-34 °

Also Includes:

  • Oil Pan
  • Valve Covers
  • Timing Cover
  • Power Adder Engine
  • Built with a Dual Keyway Crank
  • Harmonic Balancer

Recommended Break in Oil: BPP710 (Click Here)

Recommended Service Oil: BPP10W30 (Click Here)

Recommended Oil Filter: BPP51061 (Click Here)

Notes:

  • This engine features a true 4-inch bore, which mathematically yields 377 CID with a 3.75-inch stroke.
  • Not for EGR.
  • Power Adder Engine.
  • 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.

Part Number: BP38317CT1

Fuel Delivery Type: Carbureted

Spark Plug: BPP7938 NGK 7938 BKR5E (.750 inch reach, 14mm thread, 5/8 hex, plug)

Spark Plug Gap: .035"

Harmonic Balancer: BPP350 - Non Weighted, 8" diameter

Flexplate/Flywheel: Late 350 Weighted

Stall Converter: 2000-2400 rpm

Intake Manifold: N/A - 1986-EARLIER BOLT PATTERN

Fuel Recommendation: 91 Octane

Timing (Initial/Total Advance): Initial timing - 10-16° and Total timing 32-34°

Firing Order: 1,8,4,3,6,5,7,2

Recommended Break in Oil : BPP710 (Click Here)

Recommended Service Oil : BPP10W30 (Click Here) 

Recommended Oil Filter ; BPP51061 (Click Here)

Total Oil capacity with production oil pan, and Correct BPP51061 Filter : 5 Quarts 

Header Partners: 
Click here for our Header Partners and recommendations.

Click here to download a copy of the Installation Guide that came with your BluePrint engine.

BETTER THAN THE REST.

The satisfaction of our customers is our highest priority at BluePrint Engines. We use quality components to balance your engine's rotating assembly within two grams of spec. We dyno test your crate engine and certify that it's ready to deliver horsepower and torque.

We give your BluePrint engine the industry's best-in-class warranty for 30-months / 50,000 miles — with the extra confidence only BluePrint can provide. Our warranty applies to individual or professional installations and is fully transferable.

For a detailed overview of our warranty, click here.

IT ALL COMES DOWN TO RESULTS.

We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer 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.

BRAGGING RIGHTS INCLUDED!

A comprehensive, dyno-generated printout showing these critical specs will accompany your delivered engine. 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 dyno results!

This engine will be dyno tested before it ships to you at no additional charge (others charge $500)!

RECOMMENDED PRODUCTS:
Dual Plane Aluminum Vortec Intake Manifold Kit - Square Bore - GM SB Compatible - Natural
BluePrint Engines Crate Engine Break-In Oil — 1 Quart
BluePrint Engines 10w30 Engine Oil - 1 Quart
TrueBlue Performance Octane Boost
BluePrint Engines TrueBlue Performance Octane Booster
BluePrint Engines TrueBlue UltraCool Antifreeze Coolant CONCENTRATE
BluePrint Engines TrueBlue Power Steering Fluid
BluePrint Engines TrueBlue Transmission Fluid UNIVERSAL ATF/MTF
GM SB and BB Compatible Oil Filter
BPP7938 NGK 7938 BKR5E Spark Plugs - Set of 8
8mm Spark Plug Wire Set - 90° Boots - GM SB Compatible
Mechanical Fuel Pump - GM SB Compatible 262-400 - 2 Valve - 80 GPH and 6 psi
Racing Mechanical Fuel Pump - GM SB 262-400 - 6 Valve - 110 GPH and 7.5 psi
GM Compatible Fuel Pump Pushrod
Fuel Pump Block Off - GM SB Compatible
Electric Carburetor Fuel Pump - 130 GPH
Liquid Filled Fuel Pressure Gauge - 0-15 psi
Billet Aluminum Fuel Pressure Regulator - 5-12 PSI and -6AN ORB
Holley Super Sniper 650 EFI - Self-Tuning Kit - Power Adder - Black
Holley Sniper 1250 EFI - Self-Tuning Kit - 4150 Power Adder - Black
Holley Sniper 1250 EFI - Self-Tuning Kit - 4150 Power Adder - Chrome
EFI Fuel Pump and Plumbing Kit BPP5267 - For Fuel injected engines
Holley EFI In-Tank Retrofit Fuel Pump - 255 LPH - Return Style
EFI Billet Aluminum Fuel Pressure Bypass Regulator - 40-75 PSI and -10AN ORB - Black
Liquid Filled Fuel Pressure Gauge - 0-100 PSI
GM SB and BB Compatible HEI Ready to Run Distributor - 65K Volt Coil - Black Cap
GM SB and BB Compatible HEI Ready to Run Distributor - 65K Volt Coil - Black Dust Cover - Red Cap
HEI Distributor 1-Piece Power and Tachometer Pigtail Harness
GM SB and BB Compatible ProSeries Ready to Run Tach Drive Distributor - Black Cap with Fixed Collar
GM SB and BB Compatible ProSeries Ready to Run Distributor - Black Cap and Body with Fixed Collar
GM SB and BB Compatible ProSeries 2-Wire Distributor - Black Cap
45K Volt Ignition Coil - Canister Round Oil-Filled - Female Socket - Black
50K Volt Ignition Coil - External E-Core - Black
Air Cleaner with Flat Base - 14" Chrome
Air Cleaner with Flat Base - 14" Black
Air Cleaner with Drop Base - 14" Chrome
Air Cleaner with Drop Base - 14" Black
Aluminum Mechanical Water Pump – GM SB Compatible – Long – Standard Rotation – Satin
Aluminum Mechanical Water Pump – GM SB Compatible – Short – Standard Rotation – Satin
GM SB and BB Compatible Starter – 3 HP – 153 or 168 Tooth Flywheel – Tilton Style - Chrome
GM SB and BB Compatible Starter – 3 HP – 153 or 168 Tooth Flywheel – Tilton Style - Black
GM SB and BB Compatible Starter – 168-Tooth Flywheel – Denso Style - OEM Finish
168-Tooth Steel SFI 14" Flex Plate - 1-Piece Rear Main Seal - External Balance - GM Compatible
153-Tooth Steel SFI Flex Plate - 1-Piece Rear Main Seal - External Balance - GM Compatible
168-Tooth Iron Flywheel - 1-Piece Rear Main Seal - 11" Clutch - External Balance - GM Compatible
BluePrint Parts – Jiggle Pin Thermostat – 180° - GM Small Block, GM Big Block, Mopar Magnum 360, and Ford Small Block Compatible
BluePrint Parts - Aluminum Thermostat Housing Angle - GM Small Block and GM Big Block Compatible
GM SB Compatible Front Accessory Drive - Full Serpentine with Alternator | AC | Power Steering | Water Pump | Brackets and Bolts
GM SB Compatible Front Accessory Drive - Full Serpentine with Alternator | Power Steering | Water Pump | Brackets and Bolts
GM SB Compatible Front Accessory Drive - Dual-Belt Quick Serpentine with Alternator | AC | Power Steering | Water Pump | Brackets and Bolts
GM SB Compatible Front Accessory Drive - Dual-Belt Quick Serpentine with Alternator | Power Steering | Water Pump | Brackets and Bolts