SKU: B347KB4R7M
BluePrint Engines Ford Small Block Compatible 347 C.I. Mustang Edition - 4R70W Automatic Transmission - Black Pulley Kit - Carbureted
$19,249.00
347 c.i. 415 Horsepower Builder Series

Horsepower & Torque: 415 Horsepower / 415 ft. lbs. Torque

Cylinder Heads: BluePrint Engines Aluminum Cylinder Heads

Compression Ratio: 10:1

Camshaft: Hydraulic Roller Cam - .543 Intake / .554 Exhaust and 218 Intake / 226 Exhaust Duration @ .050 - 112 LSA

Pistons: Forged

Crankshaft: Cast Crank - 3.400" Stroke and Forged 5.400" Rods

Fuel Recommendation: 91+ Octane

*Shows Polished Pulley Kit, Comes with Black Pulley Kit

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Financing available at checkout with Affirm

Overview:

This 347 c.i. Mustang Edition engine and 4R70W automatic transmission Builders Series package delivers 415 horsepower and 415 lb-ft of torque, combining proven small-block power with dependable street performance. Equipped with a Holley 600 CFM carburetor, it provides crisp throttle response, easy tuning, and the classic feel of a traditional carbureted setup. The performance intake manifold, distributor, spark plugs and wires, valve covers, and harmonic balancer all work together to ensure smooth, consistent power throughout the RPM range. The polished front accessory drive gives the engine a clean, professional appearance, while the driver-side standard rotation water pump, Type II power steering pump with remote reservoir, 140-amp 1-wire alternator, and 7B10 peanut-style A/C compressor provide a complete front-end system. This 347-package delivers the perfect blend of classic Ford V8 compatible performance and modern reliability — fully assembled, ready to drop in, and built to turn heads on the road or at the show.

Description: 

  • Horsepower & Torque: 415 Horsepower / 415 ft. lbs. Torque
  • Compression Ratio: 10.0:1
  • BluePrint Engines Aluminum Heads
  • BluePrint Engines Cast Crank
  • BluePrint Engines Forged Pistons
  • BluePrint Engines Hydraulic Roller Cam

Block:

  • BluePrint Engines High Strength Cast Iron Block
  • Increased Deck Thickness and Strength Webbing
  • Priority Main Oiling
  • 4.000" Bore
  • 4-Bolt Main
  • 1-Piece Rear Main Seal
  • Improved Water Jacket Design

Rotating Assembly:

  • Cast Crank
  • 3.400" Stroke
  • Forged 5.400" Connecting Rods
  • Forged Pistons
  • 28oz Externally Balanced Front and Rear

Cylinder Heads:

  • BluePrint Aluminum Cylinder Heads - HP9009
  • 60cc Chamber
  • 2.02" Intake / 1.60" Exhaust Valves
  • 190cc Intake / 60cc Exhaust Runners

Cam Specs:

  • Hydraulic Roller Cam
  • .543 Intake / .554 Exhaust Lift
  • 218 Intake / 226 Exhaust Duration
  • @.050-112 Degree Lobe Separation

Ignition Timing:

  • 34 Degrees Total at 3500 RPM

Also Includes:

  • Holley 600 CFM Street Warrior Carburetor - BPP080457SA
  • Mustang Style Valve Covers *Mustang scripted valve cover may be different than pictured based on availability*
  • Dual Plane, Satin Aluminum Intake Manifold
  • Thermostat and Thermostat Housing
  • Pro Billet Distributor
  • 7 Quart Oil Pan
    • Electric Fuel Pump Black
      Black Front Accessory Drive - BPP302FDACPS4BKDriver Side Standard Rotation Water Pump
    • Type II Power Steering Pump
    • Remote Power Steering Pump Reservoir
    • 140amp 1-wire Alternator
    • 7B10 Peanut Air Conditioning Compressor

Assembled with Complete 4R70W Automatic Transmission Package:

  • Includes Electronic Transmission Controller
  • Transmission Built to 650 HP
  • 2200-2600 Stall Torque Converter
  • Flex Plate
  • Starter
  • 4 Speed, Overdrive Transmission w/Lockup
  • GEAR RATIOS
    • First: 2.84 :1.
    • Second: 1.55 :1.
    • Third: 1.00 :1.
    • Overdrive: 0.70 :1.
    • Reverse: 2.32 :1.

Notes:

  • Does not include TPS, as varies with carb or EFI type. Recommend Caspers Electronics TPS Breakout Harness PN 108103 for use with Sniper.
  • The front accessory drive on this engine fits many vehicles, however it is the customer responsibility to accurately measure and confirm fitment. Note this is a low-profile design, but things such as power steering hoses, alternator wiring, and additional fittings/fabrication may be required on some vehicles.
  • Note that 4R70W transmission may require modifications/replacement of driveshaft, transmission mount, exhaust routing, etc. 
  • Package Ships assembled as pictured. 
  • IF THIS IS BEING ORDERED FOR A FACTORY FIVE VEHICLE, STOP AND CALL US AT 1-800-483-4263 FOR PROPER FITMENT OR VISIT FACTORYFIVEENGINES.COM

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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